Analytical Microextraction Techniques

Microextraction by Packed Sorbent (MEPS): Theory, Developments and Applications

Author(s): Mohammad Mahdi Moein, Abbi Abdel-Rehim and Mohamed Abdel-Rehim

Pp: 241-253 (13)

DOI: 10.2174/9781681083797117010010

* (Excluding Mailing and Handling)

Abstract

Sample preparation is a critical issue in bioanalysis since the matrix is often complex. A good sample preparation technique will remove the possible interferences from the sample matrix pre-concentrate the analyte and to be reproducible independent of the sample matrix. Recent developments of sample preparation techniques are directed toward automation, the smaller sample volumes and online coupling of sample preparation units and detection systems. Microextraction in packed syringe (MEPS) is a new type of solid-phase extraction (SPE) technique that is miniaturized and can be fully automated. In MEPS the solid bed is integrated in the injection syringe. The MEPS syringe can be used online for both extraction and injection of samples. The present chapter gives an overview of MEPS technique, including the MEPS description, formats, sorbents, experimental and protocols and factors that affect the MEPS performance. We also summarize MEPS recent applications in bioanalysis, environmental and food analysis.


Keywords: Applications, Experimental protocols, Microextraction by packed sorbent (MEPS), Sorbents.

Related Journals
Related Books
© 2025 Bentham Science Publishers | Privacy Policy
Request history8.2.27PHP Version227msRequest Duration26MBMemory UsageGET chapter/{id}/{param?}Route
  • warninglog[23:28:30] LOG.warning: Optional parameter $id declared before required parameter $request is implic...
  • Booting (137ms)time
  • Application (89.14ms)time
  • 1 x Booting (60.66%)
    137ms
    1 x Application (39.34%)
    89.14ms
    12 templates were rendered
    • ebook.chapter_detailschapter_details.blade.php#?blade
    • layouts.chapter_header_sectionchapter_header_section.blade.php#?blade
    • ebook.chapter_top_bannerchapter_top_banner.blade.php#?blade
    • ebook.chapter_bottom_bannerchapter_bottom_banner.blade.php#?blade
    • ebook.ebook_right_bannerebook_right_banner.blade.php#?blade
    • includes.inc_related_journalsinc_related_journals.blade.php#?blade
    • includes.inc_related_ebooksinc_related_ebooks.blade.php#?blade
    • layouts.appapp.blade.php#?blade
    • layouts._login_access_login_access.blade.php#?blade
    • layouts._header_header.blade.php#?blade
    • layouts._main_menu_main_menu.blade.php#?blade
    • layouts._footer_menu_footer_menu.blade.php#?blade
    uri
    GET chapter/{id}/{param?}
    middleware
    web, check_user_access
    controller
    App\Http\Controllers\ChapterController@GetChapterDetails
    namespace
    App\Http\Controllers
    where
    as
    chapter
    file
    app/Http/Controllers/ChapterController.php:1350-1704
    19 statements were executed24.05ms
    • Connection Establishedalphaeurekaselec_live_10_06_2022UserAccessCheck.php#24
      Backtrace
      • 9. middleware::check_user_access:24
      • 10. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 11. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
      • 12. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 13. vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php:88
    • INSERT INTO visitor_ip_address (ip_address,visitor_agent,visitor_count, created_on,updated_on) VALUES ('59769557','',1,1739834910,1739834910) ON DUPLICATE KEY UPDATE visitor_count=visitor_count + 1, updated_on=1739834910
      1.43msalphaeurekaselec_live_10_06_2022UserAccessCheck.php#24
      Backtrace
      • 11. middleware::check_user_access:24
      • 12. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
      • 14. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 15. vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php:88
    • INSERT INTO visitor_ip_address_detail (ip_address,visitor_url,visitor_count, created_on,updated_on) VALUES ('59769557','/chapter/9851',1,1739834910,1739834910)
      200μsalphaeurekaselec_live_10_06_2022UserAccessCheck.php#27
      Backtrace
      • 11. middleware::check_user_access:27
      • 12. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
      • 14. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 15. vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php:88
    • (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_journal_volume_trail WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_journal_volume_corporate WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_journal_volume_token WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_ebook_volume_trail WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_ebook_volume_corporate WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_ebook_volume_token WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_issue_trail WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_issue_corporate WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_issue_token WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_article_trail WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_article_corporate WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_article_token WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_chapter_trail WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_chapter_corporate WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_chapter_token WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) union (select `user_id`, `to_ip`, `from_ip` from (select user_id, to_ip, from_ip FROM user_access_disease_corporate WHERE to_ip >= 59769557 ORDER BY to_ip ASC LIMIT 1) as `tjv` where `from_ip` <= 59769557) limit 1
      14.15msalphaeurekaselec_live_10_06_2022UserAccess.php#784
      Bindings
      • 0: 59769557
      • 1: 59769557
      • 2: 59769557
      • 3: 59769557
      • 4: 59769557
      • 5: 59769557
      • 6: 59769557
      • 7: 59769557
      • 8: 59769557
      • 9: 59769557
      • 10: 59769557
      • 11: 59769557
      • 12: 59769557
      • 13: 59769557
      • 14: 59769557
      • 15: 59769557
      Backtrace
      • 14. app/Models/UserAccess/UserAccess.php:784
      • 15. middleware::check_user_access:114
      • 16. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:50
      • 18. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
    • select * from `chapter` where `chapter_id` = '9851' limit 1
      290μsalphaeurekaselec_live_10_06_2022ChapterController.php#1406
      Bindings
      • 0: 9851
      Backtrace
      • 16. app/Http/Controllers/ChapterController.php:1406
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
      • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:206
    • select CONCAT_WS(' ',au.first_name, ' ', ifnull(au.initials,''), ' ', au.last_name) as authors, CONCAT(au.last_name, IFNULL(CONCAT(' ', au.initials), ''), ' ', au.first_name) AS authorsRIS, CONCAT_WS(' ',au.last_name, ' ', ifnull(au.initials,''), ' ', au.first_name) as authorsCiteAs, CONCAT_WS(' ',au.first_name, IFNULL(CONCAT(' ', au.initials), ''), IFNULL(CONCAT(' ', au.last_name), '')) as authorsmodal , `au`.*, `af`.`ror_id`, `af`.`institution`, `af`.`department`, `af`.`country`, `af`.`city`, `af`.`address`, (GROUP_CONCAT(TRIM(BOTH ', ' FROM CONCAT(ifnull(concat(af.institution,','),''), ifnull(concat(af.department,','),''), ifnull(concat(af.address,','),''), ifnull(concat(af.city,','),''), ifnull(concat(af.country,','),''), ifnull(concat(af.postal_code,','),''), ifnull(concat(af.phone,','),''), ifnull(concat(af.fax,','),''))) SEPARATOR '|')) as `author_affiliation`, (GROUP_CONCAT(TRIM(BOTH ', ' FROM CONCAT(ifnull(concat(af.web_view,','),''))) SEPARATOR '|')) as `web_view` from `author` as `au` left join `author_affiliation` as `af` on `au`.`author_id` = `af`.`author_id` where `au`.`chapter_id` = '9851' group by `au`.`author_id` order by `au`.`article_id` asc, `au`.`sequence` asc
      630μsalphaeurekaselec_live_10_06_2022Author.php#86
      Bindings
      • 0: 9851
      Backtrace
      • 13. app/Models/Author.php:86
      • 14. app/Http/Controllers/ChapterController.php:1411
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select * from `keywords` where `chapter_id` = '9851'
      890μsalphaeurekaselec_live_10_06_2022ChapterController.php#1415
      Bindings
      • 0: 9851
      Backtrace
      • 15. app/Http/Controllers/ChapterController.php:1415
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
      • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:206
    • select * from `ebook` where `ebook_id` = 625 limit 1
      310μsalphaeurekaselec_live_10_06_2022ChapterController.php#1430
      Bindings
      • 0: 625
      Backtrace
      • 16. app/Http/Controllers/ChapterController.php:1430
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 19. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
      • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:206
    • select count(*) as aggregate from `subject_ebook` as `se` inner join `ebook` as `e` on `e`.`ebook_id` = `se`.`ebook_id` inner join `ebook_volume` as `v` on `v`.`ebook_id` = `e`.`ebook_id` where subject_id IN (select subject_id FROM subject_ebook WHERE ebook_id=625) and se.ebook_id!=625 and v.ebook_status='1'
      1.02msalphaeurekaselec_live_10_06_2022Subject.php#238
      Backtrace
      • 16. app/Models/Subject.php:238
      • 17. app/Http/Controllers/ChapterController.php:1434
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 19. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select distinct v.nid as volume_id,e.nid,e.title,v.issn,v.eissn,v.isbn,v.eisbn,e.ebook_id, v.image_file_name,v.file_path,v.flyer_link,v.ebook_volume_id, v.volume_name,v.doi,v.year_id,v.introduction from `subject_ebook` as `se` inner join `ebook` as `e` on `e`.`ebook_id` = `se`.`ebook_id` inner join `ebook_volume` as `v` on `v`.`ebook_id` = `e`.`ebook_id` where subject_id IN (select subject_id FROM subject_ebook WHERE ebook_id=625) and se.ebook_id!=625 and v.ebook_status='1' limit 10 offset 0
      690μsalphaeurekaselec_live_10_06_2022Subject.php#238
      Backtrace
      • 14. app/Models/Subject.php:238
      • 15. app/Http/Controllers/ChapterController.php:1434
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) as aggregate from `subject_journal` as `sj` inner join `journal` as `j` on `j`.`journal_id` = `sj`.`journal_id` where subject_id IN (select subject_id FROM subject_ebook WHERE ebook_id=625)
      410μsalphaeurekaselec_live_10_06_2022Subject.php#255
      Backtrace
      • 16. app/Models/Subject.php:255
      • 17. app/Http/Controllers/ChapterController.php:1435
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 19. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 20. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select distinct j.nid as journal_nid,j.title,j.subtitle,j.issn,j.eissn,j.keyword,sj.journal_id,j.image_file_name,j.flyer_link from `subject_journal` as `sj` inner join `journal` as `j` on `j`.`journal_id` = `sj`.`journal_id` where subject_id IN (select subject_id FROM subject_ebook WHERE ebook_id=625) limit 10 offset 0
      420μsalphaeurekaselec_live_10_06_2022Subject.php#255
      Backtrace
      • 14. app/Models/Subject.php:255
      • 15. app/Http/Controllers/ChapterController.php:1435
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select `e`.*, `a`.*, `y`.`year`, `e`.`ebook_volume_id` as `ebook_volume_id`, `a`.`ebook_volume_id` as `ebk_vol_id`, `e`.`ebook_id` as `ebk_ebook_id` from `ebook_volume` as `e` left join `author` as `a` on `e`.`ebook_volume_id` = `a`.`ebook_volume_id` left join `year` as `y` on `y`.`id` = `e`.`year_id` where `e`.`ebook_volume_id` = 2200 and `e`.`is_uploaded` = 1
      490μsalphaeurekaselec_live_10_06_2022EbookVolume.php#271
      Bindings
      • 0: 2200
      • 1: 1
      Backtrace
      • 13. app/Models/EbookVolume.php:271
      • 14. app/Http/Controllers/ChapterController.php:1438
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) rcd from `ebook_volume` where `ebook_id` = 625 and ebook_volume_id <> 2200 limit 1
      240μsalphaeurekaselec_live_10_06_2022EbookVolume.php#999
      Bindings
      • 0: 625
      Backtrace
      • 14. app/Models/EbookVolume.php:999
      • 15. app/Http/Controllers/ChapterController.php:1462
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 18. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) as total_count, content_type_access_id as access_type from ebook_access where content_type_id = '9851' and content_type = 'c' and ( (from_date <= CURDATE() and to_date >= CURDATE() and perpetual= 0) or (from_date is null and to_date is null and perpetual= 1) )
      300μsalphaeurekaselec_live_10_06_2022ContentAccess.php#647
      Backtrace
      • 11. app/Models/ContentAccess.php:647
      • 12. app/Http/Controllers/ChapterController.php:1465
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select count(*) as total_count, content_type_access_id as access_type from ebook_access where content_type_id = '2200' and content_type = 'v' and ( (from_date <= CURDATE() and to_date >= CURDATE() and perpetual= 0) or (from_date is null and to_date is null and perpetual= 1) )
      230μsalphaeurekaselec_live_10_06_2022ContentAccess.php#647
      Backtrace
      • 11. app/Models/ContentAccess.php:647
      • 12. app/Http/Controllers/ChapterController.php:1478
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"ebook_volume" as access_level,"" as chapter_id from `user_access_ebook_volume_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59769557 and j.to_ip >=59769557 )) and ((j.from_date <= 1739834910 and j.to_date >= 1739834910 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.volume_id = 2200) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"ebook_volume" as access_level,"" as chapter_id from `user_access_ebook_volume_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59769557 and j.to_ip >=59769557 )) and ((j.from_date <= 1739834910 and j.to_date >= 1739834910 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.volume_id = 2200) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"ebook_volume" as access_level,"" as chapter_id from `user_access_ebook_volume_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59769557 and j.to_ip >=59769557 )) and ((j.from_date <= 1739834910 and j.to_date >= 1739834910 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.volume_id = 2200)
      570μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1518
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59769557 and j.to_ip >=59769557 )) and ((j.from_date <= 1739834910 and j.to_date >= 1739834910 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 9851) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59769557 and j.to_ip >=59769557 )) and ((j.from_date <= 1739834910 and j.to_date >= 1739834910 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 9851) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59769557 and j.to_ip >=59769557 )) and ((j.from_date <= 1739834910 and j.to_date >= 1739834910 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 9851)
      530μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1549
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select b.banner_link, b.banner_name, b.banner_script, b.banner_remarks, b.banner_file_name, b.banner_placement, bd.content_type, bd.content_id from `tbl_banner` as `b` inner join `tbl_banner_detail` as `bd` on `bd`.`banner_id` = `b`.`banner_id` inner join `users` as `u` on `u`.`id` = `b`.`updated_by` where `b`.`banner_ebook` = 1 and `bd`.`content_type` = 'B' and `bd`.`content_id` = 2200 and `b`.`banner_from_date` <= 1739834910 and `b`.`banner_to_date` >= 1739834910 and `b`.`banner_status` = 'A' order by `b`.`banner_id` desc
      1.06msalphaeurekaselec_live_10_06_2022Banner.php#95
      Bindings
      • 0: 1
      • 1: B
      • 2: 2200
      • 3: 1739834910
      • 4: 1739834910
      • 5: A
      Backtrace
      • 13. app/Models/Banner.php:95
      • 14. app/Http/helpers.php:404
      • 17. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 18. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    • select count(*) as aggregate from `uc_cart_products` where cart_id='0a052b5e3651a54c3dfd4429f58b15b4'
      190μsalphaeurekaselec_live_10_06_2022Cart.php#271
      Backtrace
      • 15. app/Models/Cart.php:271
      • 16. view::layouts._header:260
      • 18. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 20. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    App\Models\Keywords
    4Keywords.php#?
    App\Models\Chapter
    1Chapter.php#?
    App\Models\Ebook
    1Ebook.php#?
        _token
        rucAoa7CT7qMJpInAEyCrgxXczgdktx5I7Z4X0ct
        uc_cart_id
        0a052b5e3651a54c3dfd4429f58b15b4
        _previous
        array:1 [ "url" => "https://alpha.eurekaselect.com/chapter/9851" ]
        _flash
        array:2 [ "old" => [] "new" => [] ]
        PHPDEBUGBAR_STACK_DATA
        []
        path_info
        /chapter/9851
        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:17 [ "x-https" => array:1 [ 0 => "1" ] "host" => array:1 [ 0 => "alpha.eurekaselect.com" ] "priority" => array:1 [ 0 => "u=0, i" ] "cookie" => array:1 [ 0 => "wayfindertarget=eyJpdiI6InVpTENJUjAwQ1RZYkU4djJXRlVwR1E9PSIsInZhbHVlIjoiQmhFSm94SnZwcDRpMHRRcVB5N0orTXUyaVMvdnlJUFpha24yMEJIV1k1WT0iLCJtYWMiOiI5YzczNTBlOTQzMzM0YTkxZmVkMzI1OWIxNjBjYTdiODcyNDI4MDE4MzViM2Q3NWMyMDRlOTE5MGFiZmVkNzQ3IiwidGFnIjoiIn0%3D; _ga_9F3B5VV3T3=GS1.1.1739834910.1.0.1739834910.60.0.0; _ga=GA1.1.403378762.1739834910wayfindertarget=eyJpdiI6InVpTENJUjAwQ1RZYkU4djJXRlVwR1E9PSIsInZhbHVlIjoiQmhFSm94SnZwcDRpMHRRcVB5N0orTXUyaVMvdnlJUFpha24yMEJIV1k1WT0iLCJtYWMiOiI5YzczNTBlOTQzMzM0" ] "accept-encoding" => array:1 [ 0 => "gzip, deflate, br, zstd" ] "sec-fetch-dest" => array:1 [ 0 => "document" ] "sec-fetch-user" => array:1 [ 0 => "?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 => ""HeadlessChrome";v="129", "Not=A?Brand";v="8", "Chromium";v="129"" ] "cache-control" => array:1 [ 0 => "no-cache" ] "pragma" => array:1 [ 0 => "no-cache" ] ]
        request_cookies
        0 of 0
        array:3 [ "wayfindertarget" => null "_ga_9F3B5VV3T3" => null "_ga" => null ]
        response_headers
        0 of 0
        array:5 [ "content-type" => array:1 [ 0 => "text/html; charset=UTF-8" ] "cache-control" => array:1 [ 0 => "no-cache, private" ] "date" => array:1 [ 0 => "Mon, 17 Feb 2025 23:28:30 GMT" ] "set-cookie" => array:2 [ 0 => "XSRF-TOKEN=eyJpdiI6Im5QWTZZQnYxMWIzV3R4d1YvR2JQVnc9PSIsInZhbHVlIjoiTUx1YnZDSGU5MU5Rb0JQWC9VZkE0TDhIZUgyREFsUG1XcXJZUEZaZmZiRHRDeEplVERpNU5yeHFBKzFidFh3YzJwN1pXa09tZVR0RlJ3TXcyQWVIaWY2NldFTkxzVzVFYm1Ib3VSU1J6OWovc3dQTmxuTFF1RVgrSkNCaG9KNkIiLCJtYWMiOiJmMGY2MzIwOTFiNzJmODU5NGQyZDBiZTU2M2IyZTZiZjBmZWViNWYxYzA4ZTI0NTdmMjE2Y2E1ZTk4MzFiNTE5IiwidGFnIjoiIn0%3D; expires=Thu, 20 Feb 2025 11:28:30 GMT; Max-Age=216000; path=/; secure; samesite=laxXSRF-TOKEN=eyJpdiI6Im5QWTZZQnYxMWIzV3R4d1YvR2JQVnc9PSIsInZhbHVlIjoiTUx1YnZDSGU5MU5Rb0JQWC9VZkE0TDhIZUgyREFsUG1XcXJZUEZaZmZiRHRDeEplVERpNU5yeHFBKzFidFh3YzJwN1pXa" 1 => "alphaeurekaselectnet_session=eyJpdiI6ImJ0eThCMjJTdERmTzFEeWQ3aVRTWFE9PSIsInZhbHVlIjoiWGR4VktrNkcvMWptMmZpb1dnc0l1RG5FcklDQ2xtYlN3ZG43eXRlUVMxY09hNlJEbXhCK3hyZlZZeHlQMEMxSzJSQzAyZ2xIQU92dUlWQVp2NHUyakVuRHBQVTZUbGwwM1dtYmFNQjhlNDUrVll2ZnNObnBQSEp5aG5DOFBpUmYiLCJtYWMiOiJkZTZhMjZmN2NkYzgzODhiYWE0ZTBlMjYyYmQ4NjNkYWEzODJlNjkyMDlkNDI0OTg4OTk1YjRmZTFlY2FlMjEwIiwidGFnIjoiIn0%3D; path=/; secure; httponly; samesite=laxalphaeurekaselectnet_session=eyJpdiI6ImJ0eThCMjJTdERmTzFEeWQ3aVRTWFE9PSIsInZhbHVlIjoiWGR4VktrNkcvMWptMmZpb1dnc0l1RG5FcklDQ2xtYlN3ZG43eXRlUVMxY09hNlJEbXhCK3hyZlZ" ] "Set-Cookie" => array:2 [ 0 => "XSRF-TOKEN=eyJpdiI6Im5QWTZZQnYxMWIzV3R4d1YvR2JQVnc9PSIsInZhbHVlIjoiTUx1YnZDSGU5MU5Rb0JQWC9VZkE0TDhIZUgyREFsUG1XcXJZUEZaZmZiRHRDeEplVERpNU5yeHFBKzFidFh3YzJwN1pXa09tZVR0RlJ3TXcyQWVIaWY2NldFTkxzVzVFYm1Ib3VSU1J6OWovc3dQTmxuTFF1RVgrSkNCaG9KNkIiLCJtYWMiOiJmMGY2MzIwOTFiNzJmODU5NGQyZDBiZTU2M2IyZTZiZjBmZWViNWYxYzA4ZTI0NTdmMjE2Y2E1ZTk4MzFiNTE5IiwidGFnIjoiIn0%3D; expires=Thu, 20-Feb-2025 11:28:30 GMT; path=/; secureXSRF-TOKEN=eyJpdiI6Im5QWTZZQnYxMWIzV3R4d1YvR2JQVnc9PSIsInZhbHVlIjoiTUx1YnZDSGU5MU5Rb0JQWC9VZkE0TDhIZUgyREFsUG1XcXJZUEZaZmZiRHRDeEplVERpNU5yeHFBKzFidFh3YzJwN1pXa" 1 => "alphaeurekaselectnet_session=eyJpdiI6ImJ0eThCMjJTdERmTzFEeWQ3aVRTWFE9PSIsInZhbHVlIjoiWGR4VktrNkcvMWptMmZpb1dnc0l1RG5FcklDQ2xtYlN3ZG43eXRlUVMxY09hNlJEbXhCK3hyZlZZeHlQMEMxSzJSQzAyZ2xIQU92dUlWQVp2NHUyakVuRHBQVTZUbGwwM1dtYmFNQjhlNDUrVll2ZnNObnBQSEp5aG5DOFBpUmYiLCJtYWMiOiJkZTZhMjZmN2NkYzgzODhiYWE0ZTBlMjYyYmQ4NjNkYWEzODJlNjkyMDlkNDI0OTg4OTk1YjRmZTFlY2FlMjEwIiwidGFnIjoiIn0%3D; path=/; secure; httponlyalphaeurekaselectnet_session=eyJpdiI6ImJ0eThCMjJTdERmTzFEeWQ3aVRTWFE9PSIsInZhbHVlIjoiWGR4VktrNkcvMWptMmZpb1dnc0l1RG5FcklDQ2xtYlN3ZG43eXRlUVMxY09hNlJEbXhCK3hyZlZ" ] ]
        session_attributes
        0 of 0
        array:5 [ "_token" => "rucAoa7CT7qMJpInAEyCrgxXczgdktx5I7Z4X0ct" "uc_cart_id" => "0a052b5e3651a54c3dfd4429f58b15b4" "_previous" => array:1 [ "url" => "https://alpha.eurekaselect.com/chapter/9851" ] "_flash" => array:2 [ "old" => [] "new" => [] ] "PHPDEBUGBAR_STACK_DATA" => [] ]
        ClearShow all
        Date ↕MethodURLData
        #12025-02-17 23:28:30GET/chapter/9851112196