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Filename: drivers/Session_files_driver.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Filename: drivers/Session_files_driver.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 315
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Message: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent
Filename: Session/Session.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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File: /home/orthodiedw/nutridatabase/index.php
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Filename: Session/Session.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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File: /home/orthodiedw/nutridatabase/index.php
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Filename: Session/Session.php
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Line: 7
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Line: 7
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Filename: Session/Session.php
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Line: 7
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Filename: Session/Session.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Filename: Session/Session.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Dans le présent article, des méthodes électrochimiques ont été utilisées pour étudier le comportement de l'acide ascorbique sur une électrode en pâte de carbone modifiée avec du 2,2 '- ((1E) - (1,2-phénylènebis (azanylylidène)) bis (méthanylylidène) bis (benzène-1,4-diol) (PBD) et nanotubes de carbone multiparois oxydés. L'électrode en pâte de carbone modifiée a montré une activité électrocatalytique élevée vis-à-vis de l'acide ascorbique; le courant a été augmenté de manière significative par rapport à la situation qui prévalait lorsqu'une électrode en pâte de carbone non modifiée était utilisée. La voltamétrie cyclique a été utilisée pour étudier les propriétés rédox de cette électrode modifiée à différentes valeurs de pH de la solution et à différentes vitesses de balayage. En utilisant la voltamétrie différentielle par impulsions, les courbes d’étalonnage pour AA ont été obtenues dans la plage de 1,0-80,0 et 80-4000,0 µM, respectivement. La limite de détection était de 0,3 µM. Le présent procédé fournit un procédé simple pour la détection sélective de l'acide ascorbique. Le DPV a également été utilisé pour la détermination simultanée de l'AA, de l'acide urique et du tryptophane à l'électrode modifiée. Enfin, le capteur électrochimique proposé a été utilisé pour la détermination de ces substances dans des systèmes biologiques et des échantillons pharmaceutiques.
Source: https://www.ncbi.nlm.nih.gov/pubmed/30127810