Receiving Helpdesk

what is the rf value of caffeine

by Dr. Sienna Schaden Published 3 years ago Updated 2 years ago

The Rf value of caffeine standard was 0.63, and every sample showed similar value with caffeine standard, indicating that all samples contain caffeine.

Precautions

What are factors affecting RF value?

  • The solvent system.
  • Composition of the mobile phase.
  • The working temperature of the system.
  • The quality of the paper used.
  • The distance through which the solvent runs.
  • The quality and nature of solvents used.
  • The polarity of components.
  • The pH of the solvent or mobile phase.

What is the Rf value and its importance in chromatography?

What is the RF value of acetaminophen? Acetaminophen should have the Rf value of ~0.56. Which is more polar ibuprofen or acetaminophen? Ibuprofen is least polar and Caffeine is most polar. caffeine contains two amide groups, two amine groups and an alkene group. Acetaminophen contains one amide and one phenolic group. So it is most polar.

What is the Rf value of acetaminophen?

Ibuprofen

  • 1 Structures
  • 2 Names and Identifiers. ...
  • 3 Chemical and Physical Properties. ...
  • 4 Spectral Information. ...
  • 6 Chemical Vendors
  • 7 Drug and Medication Information
  • 8 Pharmacology and Biochemistry. ...
  • 9 Use and Manufacturing. ...
  • 10 Identification. ...
  • 11 Safety and Hazards. ...

More items...

What is the Rf value of ibuprofen?

Each donut, sold in a pack of two, has about 50mg-70 mg of caffeine--a bit less than a cup of coffee. The donuts are part of a wave of caffeine-fueled snack foods. The Donettes are all a-buzz — with caffeine. Hostess Brands announced Tuesday a new ...

How many mg of caffiene in a cup of coffee?

Does caffeine have a high Rf value?

1+2.) The results gathered showed that compound A had two spots, lower spot had an rf value of 0.48 and upper spot had an rf value of 0.77, this shows that compound A contained both paracetamol which has an rf value of 0.48 and caffeine which has an rf value of 0.77.

What is the Rf value for aspirin?

0.67The Rf values are 0.70 for salicylic acid and diflunisal, 0.67 for aspirin and methyl salicylate, 0.60 for gentisic acid, 0.57 for p-aminosalicyclic acid, and 0.40 for salicyluric acid.

What is the Rf value of caffeine in ethyl acetate?

Efficient separation of the components of mixture (III) was attained using ethyl acetate as mobile phase with Rf values of 0.12, 0.62 and 0.42 for chlorphenoxamine hydrochloride, 8-chlorotheophylline and caffeine, respectively.

What is the value of Rf value?

The Rf value of a compound is equal to the distance traveled by the compound divided by the distance traveled by the solvent front (both measured from the origin).

What is the Rf value of ibuprofen?

Rf values were found to be 0.40, 0.94, 0.66, 0.27, 0.83 for ibuprofen, 4-isobutylacetophenone, famotidine, famotidine acid and basic degradation products, respectively.

What is the Rf value of acetaminophen?

The Rf values of the isolated acetaminophen, pure acetaminophen and Excedrin were all within 0.06. This is most likely due to the contamination of the TLC plate with Excedrin.

What is the lambda max of caffeine?

273 nmIn this study first method involved the simultaneous equation method and absorption of caffeine was recorded at 273 nm (λ max), while the other method involves the formation of Q-absorbance equation at isosbestic point at 259.5 nm. From both methods linearity concentration range was 2–2.3 μg/mL for caffeine.

How do you calculate Rf values?

1:146:36Calculating Rf Values - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo if we wanted to calculate the RF of a. You would take the distance traveled by a over theMoreSo if we wanted to calculate the RF of a. You would take the distance traveled by a over the distance traveled by the solvent call that s and here that's equal to two over four.

How do you test for caffeine?

D+Caf Caffeine Test Strips /// $9.95 for a tube of 20 strips The Promise: A test strip that quickly tells you if a beverage is caffeinated or decaffeinated. The purpose of the D+Caf test strip is to give caffeine-sensitive (or just curious) people the ability to label their coffee as regular or decaf.

Can Rf value be 1?

By definition, Rf values are always less than 1. An Rf value of 1 or too close to it means that the spot and the solvent front travel close together and is therefore unreliable. This happens when the eluting solvent is too polar for the sample.

Why is Rf value calculated?

Why do we need the Rf value? Rf values in chromatography are the basic requirement of the whole experiment. These values tell us whether the analyte (solute) is more affinitive with stationary or the mobile phase.

What is Rf and Rx value?

‌Rf value :- It is defined as the ratio of the distance travelled by the compound at its maximum. In many cases it has been observed that the solvent front os run off the end of the chromatogram. Rx value is the ratio of the distance travelled by a substance to the distance travelled by a reference standard.

What is the Rf value of pure caffeine?

While the Rf value from the analysis of pure caffeine is 0.70; 0.71; 0.72. The Rf values which indicate the results of the qualitative analysis of pure caffeine.

What is the RF value of paracetamol?

Also Know, what is the RF value of paracetamol? The solvent system was found to give compact spot for chlorzoxazone (Rf values of 0.23 ± 0.021), diclofenac sodium (Rf values of 0.51 ± 0.035) and paracetamol (Rf values of 0.64 ± 0.028) .

What is the Rf value of gentisic acid?

The Rf values are 0.70 for salicylic acid and diflunisal, 0.67 for aspirin and methyl salicylate, 0.60 for gentisic acid, 0.57 for p-aminosalicyclic acid, and 0.40 for salicyluric acid.

image

Popular Posts:

  • 1. what is the meaning of contemporary organizations
  • 2. what is a trapeze style dress
  • 3. costco face mask medical
  • 4. can you cut back zinnias
  • 5. will a crayfish claw grow back
  • 6. tipos de energia mecanica
  • 7. how do i remove rustoleum deck restore
  • 8. what are the large shrimp called
  • 9. ideal weight for height and age
  • 10. yes app free
    • A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9
    Messages10TimelineExceptionsViews7RouteQueries7Models15Livewire0MailsGateSessionRequest
    8.3.21PHP Version3.06sRequest Duration2MBMemory UsageGET {post}Route
    • warninglog[07:06:31] LOG.warning: Creation of dynamic property Barryvdh\Debugbar\DataFormatter\QueryFormatter:...
    • warninglog[07:06:31] LOG.warning: Creation of dynamic property Barryvdh\Debugbar\DataFormatter\QueryFormatter:...
    • warninglog[07:06:31] LOG.warning: Callables of the form ["Swift_SmtpTransport", "Swift_Transport_EsmtpTranspor...
    • warninglog[07:06:31] LOG.warning: Creation of dynamic property Barryvdh\Debugbar\DataFormatter\SimpleFormatter...
    • warninglog[07:06:31] LOG.warning: Creation of dynamic property Barryvdh\Debugbar\DataFormatter\SimpleFormatter...
    • warninglog[07:06:31] LOG.warning: json_decode(): Passing null to parameter #1 ($json) of type string is deprec...
    • warninglog[07:06:31] LOG.warning: json_decode(): Passing null to parameter #1 ($json) of type string is deprec...
    • warninglog[07:06:31] LOG.warning: json_decode(): Passing null to parameter #1 ($json) of type string is deprec...
    • warninglog[07:06:31] LOG.warning: json_decode(): Passing null to parameter #1 ($json) of type string is deprec...
    • warninglog[07:06:31] LOG.warning: explode(): Passing null to parameter #2 ($string) of type string is deprecat...
    warning
    • Booting (13.49ms)
    • Application (3.05s)
    • 1 x Application (99.55%)
      3.05s
      1 x Booting (0.44%)
      13.49ms
      7 templates were rendered
      • themes.DevBlog.content.post (resources/views/themes/DevBlog/content/post.blade.php)34blade
        Params
        0
        post
        1
        postContent
        2
        author
        3
        updated_at
        4
        bing_rich_snippet_text
        5
        bing_rich_snippet_link
        6
        bing_related_keywords
        7
        google_related_keywords
        8
        bing_news_title
        9
        bing_news_description
        10
        bing_videos
        11
        bing_images
        12
        bing_search_result_title
        13
        bing_search_result_description
        14
        bing_search_result_url
        15
        bing_paa_questions
        16
        bing_paa_answers
        17
        bing_slider_faq_questions
        18
        bing_slider_faq_answers
        19
        bing_pop_faq_questions
        20
        bing_pop_faq_answers
        21
        bing_tab_faq_questions
        22
        bing_tab_faq_answers
        23
        google_faq_questions
        24
        google_faq_answers
        25
        google_rich_snippet
        26
        google_search_result
        27
        indexedArray
        28
        total_images
        29
        total_videos
        30
        settings
        31
        url_current
        32
        menus
        33
        sidebar
      • themes.DevBlog.layouts.master (resources/views/themes/DevBlog/layouts/master.blade.php)41blade
        Params
        0
        __env
        1
        app
        2
        errors
        3
        post
        4
        postContent
        5
        author
        6
        updated_at
        7
        bing_rich_snippet_text
        8
        bing_rich_snippet_link
        9
        bing_related_keywords
        10
        google_related_keywords
        11
        bing_news_title
        12
        bing_news_description
        13
        bing_videos
        14
        bing_images
        15
        bing_search_result_title
        16
        bing_search_result_description
        17
        bing_search_result_url
        18
        bing_paa_questions
        19
        bing_paa_answers
        20
        bing_slider_faq_questions
        21
        bing_slider_faq_answers
        22
        bing_pop_faq_questions
        23
        bing_pop_faq_answers
        24
        bing_tab_faq_questions
        25
        bing_tab_faq_answers
        26
        google_faq_questions
        27
        google_faq_answers
        28
        google_rich_snippet
        29
        google_search_result
        30
        indexedArray
        31
        total_images
        32
        total_videos
        33
        settings
        34
        url_current
        35
        menus
        36
        sidebar
        37
        i
        38
        __currentLoopData
        39
        loop
        40
        item
      • themes.DevBlog.panels.head (resources/views/themes/DevBlog/panels/head.blade.php)41blade
        Params
        0
        __env
        1
        app
        2
        errors
        3
        post
        4
        postContent
        5
        author
        6
        updated_at
        7
        bing_rich_snippet_text
        8
        bing_rich_snippet_link
        9
        bing_related_keywords
        10
        google_related_keywords
        11
        bing_news_title
        12
        bing_news_description
        13
        bing_videos
        14
        bing_images
        15
        bing_search_result_title
        16
        bing_search_result_description
        17
        bing_search_result_url
        18
        bing_paa_questions
        19
        bing_paa_answers
        20
        bing_slider_faq_questions
        21
        bing_slider_faq_answers
        22
        bing_pop_faq_questions
        23
        bing_pop_faq_answers
        24
        bing_tab_faq_questions
        25
        bing_tab_faq_answers
        26
        google_faq_questions
        27
        google_faq_answers
        28
        google_rich_snippet
        29
        google_search_result
        30
        indexedArray
        31
        total_images
        32
        total_videos
        33
        settings
        34
        url_current
        35
        menus
        36
        sidebar
        37
        i
        38
        __currentLoopData
        39
        loop
        40
        item
      • themes.DevBlog.panels.header (resources/views/themes/DevBlog/panels/header.blade.php)41blade
        Params
        0
        __env
        1
        app
        2
        errors
        3
        post
        4
        postContent
        5
        author
        6
        updated_at
        7
        bing_rich_snippet_text
        8
        bing_rich_snippet_link
        9
        bing_related_keywords
        10
        google_related_keywords
        11
        bing_news_title
        12
        bing_news_description
        13
        bing_videos
        14
        bing_images
        15
        bing_search_result_title
        16
        bing_search_result_description
        17
        bing_search_result_url
        18
        bing_paa_questions
        19
        bing_paa_answers
        20
        bing_slider_faq_questions
        21
        bing_slider_faq_answers
        22
        bing_pop_faq_questions
        23
        bing_pop_faq_answers
        24
        bing_tab_faq_questions
        25
        bing_tab_faq_answers
        26
        google_faq_questions
        27
        google_faq_answers
        28
        google_rich_snippet
        29
        google_search_result
        30
        indexedArray
        31
        total_images
        32
        total_videos
        33
        settings
        34
        url_current
        35
        menus
        36
        sidebar
        37
        i
        38
        __currentLoopData
        39
        loop
        40
        item
      • themes.DevBlog.panels.navbar (resources/views/themes/DevBlog/panels/navbar.blade.php)41blade
        Params
        0
        __env
        1
        app
        2
        errors
        3
        post
        4
        postContent
        5
        author
        6
        updated_at
        7
        bing_rich_snippet_text
        8
        bing_rich_snippet_link
        9
        bing_related_keywords
        10
        google_related_keywords
        11
        bing_news_title
        12
        bing_news_description
        13
        bing_videos
        14
        bing_images
        15
        bing_search_result_title
        16
        bing_search_result_description
        17
        bing_search_result_url
        18
        bing_paa_questions
        19
        bing_paa_answers
        20
        bing_slider_faq_questions
        21
        bing_slider_faq_answers
        22
        bing_pop_faq_questions
        23
        bing_pop_faq_answers
        24
        bing_tab_faq_questions
        25
        bing_tab_faq_answers
        26
        google_faq_questions
        27
        google_faq_answers
        28
        google_rich_snippet
        29
        google_search_result
        30
        indexedArray
        31
        total_images
        32
        total_videos
        33
        settings
        34
        url_current
        35
        menus
        36
        sidebar
        37
        i
        38
        __currentLoopData
        39
        loop
        40
        item
      • themes.DevBlog.panels.footer (resources/views/themes/DevBlog/panels/footer.blade.php)41blade
        Params
        0
        __env
        1
        app
        2
        errors
        3
        post
        4
        postContent
        5
        author
        6
        updated_at
        7
        bing_rich_snippet_text
        8
        bing_rich_snippet_link
        9
        bing_related_keywords
        10
        google_related_keywords
        11
        bing_news_title
        12
        bing_news_description
        13
        bing_videos
        14
        bing_images
        15
        bing_search_result_title
        16
        bing_search_result_description
        17
        bing_search_result_url
        18
        bing_paa_questions
        19
        bing_paa_answers
        20
        bing_slider_faq_questions
        21
        bing_slider_faq_answers
        22
        bing_pop_faq_questions
        23
        bing_pop_faq_answers
        24
        bing_tab_faq_questions
        25
        bing_tab_faq_answers
        26
        google_faq_questions
        27
        google_faq_answers
        28
        google_rich_snippet
        29
        google_search_result
        30
        indexedArray
        31
        total_images
        32
        total_videos
        33
        settings
        34
        url_current
        35
        menus
        36
        sidebar
        37
        i
        38
        __currentLoopData
        39
        loop
        40
        item
      • themes.DevBlog.panels.scripts (resources/views/themes/DevBlog/panels/scripts.blade.php)41blade
        Params
        0
        __env
        1
        app
        2
        errors
        3
        post
        4
        postContent
        5
        author
        6
        updated_at
        7
        bing_rich_snippet_text
        8
        bing_rich_snippet_link
        9
        bing_related_keywords
        10
        google_related_keywords
        11
        bing_news_title
        12
        bing_news_description
        13
        bing_videos
        14
        bing_images
        15
        bing_search_result_title
        16
        bing_search_result_description
        17
        bing_search_result_url
        18
        bing_paa_questions
        19
        bing_paa_answers
        20
        bing_slider_faq_questions
        21
        bing_slider_faq_answers
        22
        bing_pop_faq_questions
        23
        bing_pop_faq_answers
        24
        bing_tab_faq_questions
        25
        bing_tab_faq_answers
        26
        google_faq_questions
        27
        google_faq_answers
        28
        google_rich_snippet
        29
        google_search_result
        30
        indexedArray
        31
        total_images
        32
        total_videos
        33
        settings
        34
        url_current
        35
        menus
        36
        sidebar
        37
        i
        38
        __currentLoopData
        39
        loop
        40
        item
      uri
      GET {post}
      middleware
      web, checkdate
      as
      post.show
      controller
      App\Http\Controllers\Frontend\json_data\PostController@show
      namespace
      where
      file
      app/Http/Controllers/Frontend/json_data/PostController.php:18-166
      7 statements were executed3.03s
      receivinghelpdeskask
      • select * from `posts` where `published_at` <= '2025-06-10 07:06:31' and `slug` = 'what-is-the-rf-value-of-caffeine' and `posts`.`deleted_at` is null limit 1
        4.06ms/app/Providers/RouteServiceProvider.php:54receivinghelpdeskask
        Metadata
        Bindings
        • 0. 2025-06-10 07:06:31
        • 1. what-is-the-rf-value-of-caffeine
        Backtrace
        • 15. /app/Providers/RouteServiceProvider.php:54
        • 18. /vendor/laravel/framework/src/Illuminate/Routing/Router.php:842
        • 19. Route binding:39
        • 20. /vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:167
        • 21. /vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php:78
      • select * from `json_post_contents` where `json_post_contents`.`post_id` = 172974 and `json_post_contents`.`post_id` is not null and `rewrite_id` = 0
        6.77msmiddleware::checkdate:30receivinghelpdeskask
        Metadata
        Bindings
        • 0. 172974
        • 1. 0
        Backtrace
        • 19. middleware::checkdate:30
        • 20. /vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:167
        • 21. /vendor/laravel/jetstream/src/Http/Middleware/ShareInertiaData.php:61
        • 22. /vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:167
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
      • select * from `nova_menu_menus` where `slug` = 'header' limit 1
        700μs/vendor/outl1ne/nova-menu-builder/src/helpers.php:32receivinghelpdeskask
        Metadata
        Bindings
        • 0. header
        Backtrace
        • 15. /vendor/outl1ne/nova-menu-builder/src/helpers.php:32
        • 17. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 19. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:261
        • 20. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:205
      • select * from `nova_menu_menu_items` where `nova_menu_menu_items`.`menu_id` = 1 and `nova_menu_menu_items`.`menu_id` is not null and `parent_id` is null order by `parent_id` asc, `order` asc, `name` asc
        340μs/vendor/outl1ne/nova-menu-builder/src/Models/Menu.php:35receivinghelpdeskask
        Metadata
        Bindings
        • 0. 1
        Backtrace
        • 19. /vendor/outl1ne/nova-menu-builder/src/Models/Menu.php:35
        • 20. /vendor/outl1ne/nova-menu-builder/src/helpers.php:33
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 24. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:261
      • select * from `nova_menu_menu_items` where `nova_menu_menu_items`.`parent_id` in (1) order by `order` asc
        260μs/vendor/outl1ne/nova-menu-builder/src/Models/Menu.php:35receivinghelpdeskask
        Metadata
        Backtrace
        • 24. /vendor/outl1ne/nova-menu-builder/src/Models/Menu.php:35
        • 25. /vendor/outl1ne/nova-menu-builder/src/helpers.php:33
        • 27. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 28. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 29. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:261
      • select `id`, `post_title`, `slug` from `posts` where `status` = 'publish' and `posts`.`deleted_at` is null order by RAND() limit 10
        3.01s/app/View/Composers/SidebarView.php:22receivinghelpdeskask
        Metadata
        Bindings
        • 0. publish
        Backtrace
        • 14. /app/View/Composers/SidebarView.php:22
        • 15. /app/View/Composers/SidebarView.php:12
        • 16. /vendor/laravel/framework/src/Illuminate/View/Concerns/ManagesEvents.php:124
        • 17. /vendor/laravel/framework/src/Illuminate/View/Concerns/ManagesEvents.php:162
        • 20. /vendor/laravel/framework/src/Illuminate/View/Concerns/ManagesEvents.php:177
      • select * from `fake_users` where `fake_users`.`id` = 39003 limit 1
        1.67msview::2dd102cf0462e89a4d4d8bc77355d767652bf9aa:15receivinghelpdeskask
        Metadata
        Bindings
        • 0. 39003
        Backtrace
        • 21. view::2dd102cf0462e89a4d4d8bc77355d767652bf9aa:15
        • 23. /vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:108
        • 24. /vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
        • 25. /vendor/livewire/livewire/src/ComponentConcerns/RendersLivewireComponents.php:69
        • 26. /vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:61
      App\Models\FakeUser
      1
      Outl1ne\MenuBuilder\Models\MenuItem
      1
      Outl1ne\MenuBuilder\Models\Menu
      1
      App\Models\JsonPostContent
      1
      App\Models\Post
      11
          _token
          QfBRCJGjIFlhIbTDWXgujjYYBjv8Mkjq3OtkkbN0
          _previous
          array:1 [ "url" => "https://receivinghelpdesk.com/ask/what-is-the-rf-value-of-caffeine" ]
          _flash
          array:2 [ "old" => [] "new" => [] ]
          PHPDEBUGBAR_STACK_DATA
          []
          path_info
          /what-is-the-rf-value-of-caffeine
          status_code
          200
          status_text
          OK
          format
          html
          content_type
          text/html; charset=UTF-8
          request_query
          []
          request_request
          []
          request_headers
            0 of 0   
          array:25 [▼
  "cookie" => array:1 [▶
    0 => "_pk_id.64.7c30=c4f9df3fbecfb63a.1749519380.; _pk_ses.64.7c30=1; XSRF-TOKEN=eyJpdiI6Im02dDhoRVFnN2pNTG9xUFVLb043V2c9PSIsInZhbHVlIjoiUDUrRnRSMlVXVkxWc29tSU9KT1hjREgweHY4bmVRR0NrWWtQRnFVa1daNGQwMlhsTFR4a0Z2aUd2RnY2blNNN0tFemNlKzNBOTZUeUVJR0VMNEFqQ1JsTWs2Ym5BR3lOdWh2Q0J3L1RZd2szUnNmZFlYNnA5SFVtaENLN0t1WEgiLCJtYWMiOiI5NmU0OGM4NjQ1YTk0NDhjODk1YzY5N2ZhNGE1OTQxMzI5ZTA1YjI1ZTI5Nzk1NGQ2Y2I2MzdkODViMjQ5MWM4IiwidGFnIjoiIn0%3D; askhelpdesk_session=eyJpdiI6ImtSVkw0NUkwaWNBa093a1dkWnVleXc9PSIsInZhbHVlIjoibTJGejNZbng2OTdGdHRmQmI2UGQ0R1R4dFBmVmVqeXhSVFJzN0xrdjRkbHNhVUdJaDRrRExHSmF1ZXNnQXZKNGJkRkJERHUzNXJ2TVlrSlFicUVYd0RNWTNHM2Y5UUpKby9XQ3BMNGI3Zm1BOVRUUXhlcGduQzVRZzVkS2lwcVQiLCJtYWMiOiI0MjAxMzEyMWFjZmU2MTZiMWQyOTA2YjU4ZDM4OThiNTcwNjhjMmM2NmUzOTIxMGQ1MTMzYjY4MGExMjczNTFkIiwidGFnIjoiIn0%3D ◀_pk_id.64.7c30=c4f9df3fbecfb63a.1749519380.; _pk_ses.64.7c30=1; XSRF-TOKEN=eyJpdiI6Im02dDhoRVFnN2pNTG9xUFVLb043V2c9PSIsInZhbHVlIjoiUDUrRnRSMlVXVkxWc29tSU9KT1hjR ▶"
  ]
  "cf-ipcountry" => array:1 [▶
    0 => "US"
  ]
  "cf-connecting-ip" => array:1 [▶
    0 => "216.73.216.129"
  ]
  "cdn-loop" => array:1 [▶
    0 => "cloudflare; loops=1"
  ]
  "sec-fetch-mode" => array:1 [▶
    0 => "navigate"
  ]
  "sec-fetch-site" => array:1 [▶
    0 => "none"
  ]
  "accept" => array:1 [▶
    0 => "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"
  ]
  "user-agent" => array:1 [▶
    0 => "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
  ]
  "upgrade-insecure-requests" => array:1 [▶
    0 => "1"
  ]
  "sec-ch-ua-platform" => array:1 [▶
    0 => ""Windows""
  ]
  "sec-ch-ua-mobile" => array:1 [▶
    0 => "?0"
  ]
  "sec-ch-ua" => array:1 [▶
    0 => ""Chromium";v="130", "HeadlessChrome";v="130", "Not?A_Brand";v="99""
  ]
  "cache-control" => array:1 [▶
    0 => "no-cache"
  ]
  "pragma" => array:1 [▶
    0 => "no-cache"
  ]
  "accept-encoding" => array:1 [▶
    0 => "gzip, br"
  ]
  "cf-ray" => array:1 [▶
    0 => "94d52365b8bb618a-ORD"
  ]
  "priority" => array:1 [▶
    0 => "u=0, i"
  ]
  "sec-fetch-dest" => array:1 [▶
    0 => "document"
  ]
  "sec-fetch-user" => array:1 [▶
    0 => "?1"
  ]
  "cf-visitor" => array:1 [▶
    0 => "{"scheme":"https"}"
  ]
  "connection" => array:1 [▶
    0 => "close"
  ]
  "x-forwarded-proto" => array:1 [▶
    0 => "https"
  ]
  "x-forwarded-for" => array:1 [▶
    0 => "216.73.216.129, 172.69.7.196"
  ]
  "x-server-addr" => array:1 [▶
    0 => "154.12.239.204"
  ]
  "host" => array:1 [▶
    0 => "receivinghelpdesk.com"
  ]
]
          request_server
            0 of 0   
          array:56 [▼
  "USER" => "runcloud"
  "HOME" => "/home/runcloud"
  "SCRIPT_NAME" => "/ask/index.php"
  "REQUEST_URI" => "/ask/what-is-the-rf-value-of-caffeine"
  "QUERY_STRING" => ""
  "REQUEST_METHOD" => "GET"
  "SERVER_PROTOCOL" => "HTTP/1.0"
  "GATEWAY_INTERFACE" => "CGI/1.1"
  "REDIRECT_URL" => "/ask/what-is-the-rf-value-of-caffeine"
  "REMOTE_PORT" => "35668"
  "SCRIPT_FILENAME" => "/home/runcloud/webapps/ReceivingHelpDesk/ask/index.php"
  "SERVER_ADMIN" => "you@example.com"
  "CONTEXT_DOCUMENT_ROOT" => "/home/runcloud/webapps/ReceivingHelpDesk/"
  "CONTEXT_PREFIX" => ""
  "REQUEST_SCHEME" => "http"
  "DOCUMENT_ROOT" => "/home/runcloud/webapps/ReceivingHelpDesk/"
  "REMOTE_ADDR" => "172.69.7.196"
  "SERVER_PORT" => "80"
  "SERVER_ADDR" => "127.0.0.1"
  "SERVER_NAME" => "receivinghelpdesk.com"
  "SERVER_SOFTWARE" => "Apache/2.4.63 (Unix) OpenSSL/1.1.1f"
  "SERVER_SIGNATURE" => ""
  "LD_LIBRARY_PATH" => "/RunCloud/Packages/apache2-rc/lib"
  "PATH" => "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
  "HTTP_COOKIE" => "_pk_id.64.7c30=c4f9df3fbecfb63a.1749519380.; _pk_ses.64.7c30=1; XSRF-TOKEN=eyJpdiI6Im02dDhoRVFnN2pNTG9xUFVLb043V2c9PSIsInZhbHVlIjoiUDUrRnRSMlVXVkxWc29tSU9KT1hjREgweHY4bmVRR0NrWWtQRnFVa1daNGQwMlhsTFR4a0Z2aUd2RnY2blNNN0tFemNlKzNBOTZUeUVJR0VMNEFqQ1JsTWs2Ym5BR3lOdWh2Q0J3L1RZd2szUnNmZFlYNnA5SFVtaENLN0t1WEgiLCJtYWMiOiI5NmU0OGM4NjQ1YTk0NDhjODk1YzY5N2ZhNGE1OTQxMzI5ZTA1YjI1ZTI5Nzk1NGQ2Y2I2MzdkODViMjQ5MWM4IiwidGFnIjoiIn0%3D; askhelpdesk_session=eyJpdiI6ImtSVkw0NUkwaWNBa093a1dkWnVleXc9PSIsInZhbHVlIjoibTJGejNZbng2OTdGdHRmQmI2UGQ0R1R4dFBmVmVqeXhSVFJzN0xrdjRkbHNhVUdJaDRrRExHSmF1ZXNnQXZKNGJkRkJERHUzNXJ2TVlrSlFicUVYd0RNWTNHM2Y5UUpKby9XQ3BMNGI3Zm1BOVRUUXhlcGduQzVRZzVkS2lwcVQiLCJtYWMiOiI0MjAxMzEyMWFjZmU2MTZiMWQyOTA2YjU4ZDM4OThiNTcwNjhjMmM2NmUzOTIxMGQ1MTMzYjY4MGExMjczNTFkIiwidGFnIjoiIn0%3D ◀_pk_id.64.7c30=c4f9df3fbecfb63a.1749519380.; _pk_ses.64.7c30=1; XSRF-TOKEN=eyJpdiI6Im02dDhoRVFnN2pNTG9xUFVLb043V2c9PSIsInZhbHVlIjoiUDUrRnRSMlVXVkxWc29tSU9KT1hjR ▶"
  "HTTP_CF_IPCOUNTRY" => "US"
  "HTTP_CF_CONNECTING_IP" => "216.73.216.129"
  "HTTP_CDN_LOOP" => "cloudflare; loops=1"
  "HTTP_SEC_FETCH_MODE" => "navigate"
  "HTTP_SEC_FETCH_SITE" => "none"
  "HTTP_ACCEPT" => "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"
  "HTTP_USER_AGENT" => "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
  "HTTP_UPGRADE_INSECURE_REQUESTS" => "1"
  "HTTP_SEC_CH_UA_PLATFORM" => ""Windows""
  "HTTP_SEC_CH_UA_MOBILE" => "?0"
  "HTTP_SEC_CH_UA" => ""Chromium";v="130", "HeadlessChrome";v="130", "Not?A_Brand";v="99""
  "HTTP_CACHE_CONTROL" => "no-cache"
  "HTTP_PRAGMA" => "no-cache"
  "HTTP_ACCEPT_ENCODING" => "gzip, br"
  "HTTP_CF_RAY" => "94d52365b8bb618a-ORD"
  "HTTP_PRIORITY" => "u=0, i"
  "HTTP_SEC_FETCH_DEST" => "document"
  "HTTP_SEC_FETCH_USER" => "?1"
  "HTTP_CF_VISITOR" => "{"scheme":"https"}"
  "HTTP_CONNECTION" => "close"
  "HTTP_X_FORWARDED_PROTO" => "https"
  "HTTP_X_FORWARDED_FOR" => "216.73.216.129, 172.69.7.196"
  "HTTP_X_SERVER_ADDR" => "154.12.239.204"
  "HTTP_HOST" => "receivinghelpdesk.com"
  "HTTPS" => "on"
  "REDIRECT_STATUS" => "200"
  "REDIRECT_HTTPS" => "on"
  "FCGI_ROLE" => "RESPONDER"
  "PHP_SELF" => "/ask/index.php"
  "REQUEST_TIME_FLOAT" => 1749519391.6507
  "REQUEST_TIME" => 1749519391
]
          request_cookies
            0 of 0   
          array:4 [▼
  "_pk_id_64_7c30" => null
  "_pk_ses_64_7c30" => null
  "XSRF-TOKEN" => "QfBRCJGjIFlhIbTDWXgujjYYBjv8Mkjq3OtkkbN0"
  "askhelpdesk_session" => "5FUhpKHbJs89xFBuoOVWQct38E0kOEWA4x2XbyPx"
]
          response_headers
            0 of 0   
          array:7 [▼
  "content-type" => array:1 [▶
    0 => "text/html; charset=UTF-8"
  ]
  "cache-control" => array:1 [▶
    0 => "private, must-revalidate"
  ]
  "date" => array:1 [▶
    0 => "Tue, 10 Jun 2025 01:36:31 GMT"
  ]
  "pragma" => array:1 [▶
    0 => "no-cache"
  ]
  "expires" => array:1 [▶
    0 => -1
  ]
  "set-cookie" => array:2 [▶
    0 => "XSRF-TOKEN=eyJpdiI6IkxKTVBHNUxMVndtNnNqZW9xaWNxV0E9PSIsInZhbHVlIjoiUjhwWG8reGd6VDloeHhSV1NtOFJRbU5ISVRGc1pQcitmaVlkV2U4VGxPNTdvZ1E2Z3ZjajEvdXRBSU0vK1N0L3F2K3pHbW52TGlXL2NLTG9zRDlSUHRpcGNBeXNIblhPMm9DSEk4aGE0R0JDKzRTbnFPZHArYXVnVi9CTVFDeDUiLCJtYWMiOiJlMjA3YWQyMTdhN2ZiZTJlNTUzYzRiMTVkN2E4NGJmZDdhNzA2YWFkM2E3ZWU5ZWY0ZTliZmIwZTUxMzY4MTJkIiwidGFnIjoiIn0%3D; expires=Tue, 10-Jun-2025 03:36:34 GMT; Max-Age=7200; path=/; samesite=lax ◀XSRF-TOKEN=eyJpdiI6IkxKTVBHNUxMVndtNnNqZW9xaWNxV0E9PSIsInZhbHVlIjoiUjhwWG8reGd6VDloeHhSV1NtOFJRbU5ISVRGc1pQcitmaVlkV2U4VGxPNTdvZ1E2Z3ZjajEvdXRBSU0vK1N0L3F2K3pHb ▶"
    1 => "askhelpdesk_session=eyJpdiI6IkR4S291MnNBV2d1ZUphMlZ3UUNzUXc9PSIsInZhbHVlIjoibjNaNTBobUZHb1RjS3YvMEc4NU4xYTNtV0lnNVhPK29HRUZZbDBqdHlpZlJlWW1hUWR4dVh6S250aEpPOWdnQldaM0pJbjFjTkR6dGRpdWJRbVNFZjl1Ym1PcWE5UGxId2duVjdpa3ZFRldnbm5VRmRvSEIzNEh2Y1l6VkMzcTkiLCJtYWMiOiIzODU0Nzc1ZDg1Y2M4OGFjMGY1N2I5NjlmMGY1Mjg3ZTEyYjljZmQ2MDJjMTg2ZTlkMzJkMjVhMzQxZjdmMGY0IiwidGFnIjoiIn0%3D; expires=Tue, 10-Jun-2025 03:36:34 GMT; Max-Age=7200; path=/; httponly; samesite=lax ◀askhelpdesk_session=eyJpdiI6IkR4S291MnNBV2d1ZUphMlZ3UUNzUXc9PSIsInZhbHVlIjoibjNaNTBobUZHb1RjS3YvMEc4NU4xYTNtV0lnNVhPK29HRUZZbDBqdHlpZlJlWW1hUWR4dVh6S250aEpPOWdn ▶"
  ]
  "Set-Cookie" => array:2 [▶
    0 => "XSRF-TOKEN=eyJpdiI6IkxKTVBHNUxMVndtNnNqZW9xaWNxV0E9PSIsInZhbHVlIjoiUjhwWG8reGd6VDloeHhSV1NtOFJRbU5ISVRGc1pQcitmaVlkV2U4VGxPNTdvZ1E2Z3ZjajEvdXRBSU0vK1N0L3F2K3pHbW52TGlXL2NLTG9zRDlSUHRpcGNBeXNIblhPMm9DSEk4aGE0R0JDKzRTbnFPZHArYXVnVi9CTVFDeDUiLCJtYWMiOiJlMjA3YWQyMTdhN2ZiZTJlNTUzYzRiMTVkN2E4NGJmZDdhNzA2YWFkM2E3ZWU5ZWY0ZTliZmIwZTUxMzY4MTJkIiwidGFnIjoiIn0%3D; expires=Tue, 10-Jun-2025 03:36:34 GMT; path=/ ◀XSRF-TOKEN=eyJpdiI6IkxKTVBHNUxMVndtNnNqZW9xaWNxV0E9PSIsInZhbHVlIjoiUjhwWG8reGd6VDloeHhSV1NtOFJRbU5ISVRGc1pQcitmaVlkV2U4VGxPNTdvZ1E2Z3ZjajEvdXRBSU0vK1N0L3F2K3pHb ▶"
    1 => "askhelpdesk_session=eyJpdiI6IkR4S291MnNBV2d1ZUphMlZ3UUNzUXc9PSIsInZhbHVlIjoibjNaNTBobUZHb1RjS3YvMEc4NU4xYTNtV0lnNVhPK29HRUZZbDBqdHlpZlJlWW1hUWR4dVh6S250aEpPOWdnQldaM0pJbjFjTkR6dGRpdWJRbVNFZjl1Ym1PcWE5UGxId2duVjdpa3ZFRldnbm5VRmRvSEIzNEh2Y1l6VkMzcTkiLCJtYWMiOiIzODU0Nzc1ZDg1Y2M4OGFjMGY1N2I5NjlmMGY1Mjg3ZTEyYjljZmQ2MDJjMTg2ZTlkMzJkMjVhMzQxZjdmMGY0IiwidGFnIjoiIn0%3D; expires=Tue, 10-Jun-2025 03:36:34 GMT; path=/; httponly ◀askhelpdesk_session=eyJpdiI6IkR4S291MnNBV2d1ZUphMlZ3UUNzUXc9PSIsInZhbHVlIjoibjNaNTBobUZHb1RjS3YvMEc4NU4xYTNtV0lnNVhPK29HRUZZbDBqdHlpZlJlWW1hUWR4dVh6S250aEpPOWdn ▶"
  ]
]
          session_attributes
            0 of 0   
          array:4 [▼
  "_token" => "QfBRCJGjIFlhIbTDWXgujjYYBjv8Mkjq3OtkkbN0"
  "_previous" => array:1 [▶
    "url" => "https://receivinghelpdesk.com/ask/what-is-the-rf-value-of-caffeine"
  ]
  "_flash" => array:2 [▶
    "old" => []
    "new" => []
  ]
  "PHPDEBUGBAR_STACK_DATA" => []
]