Severity: 8192
Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 132
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 315
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Return type of CI_Session_files_driver::gc($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
Line Number: 356
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set(): Session ini settings cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 282
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: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent
Filename: Session/Session.php
Line Number: 294
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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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Filename: Session/Session.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
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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
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Filename: Session/Session.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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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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Filename: Session/Session.php
Line Number: 375
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent
Filename: Session/Session.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_start(): Session cannot be started after headers have already been sent
Filename: Session/Session.php
Line Number: 143
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
Line: 315
Function: require_once
Contexte: Les structures organométalliques (MOF) sont classées comme matériaux microporeux. Ils ont de grandes surfaces, une faible densité de charpente, des cages accessibles et des tunnels à pores modifiables. Objectif: Le MOF MIL-101 (Cr) à grand volume de pores a été synthétisé de manière hydrothermale et utilisé dans les réactions électrochimiques en tant qu’électrocatalyseur pour la détermination de l’acide ascorbique (AA). Le MOF synthétisé a été caractérisé par microscopie électronique à balayage et diffraction des rayons X sur poudre. Méthodes: Le comportement électrocatalytique d'une électrode en pâte de carbone modifiée avec du MIL-101 (Cr) a été étudié par électro-oxydation de l'AA par voltampérométrie cyclique et voltampérométrie à onde carrée. Le système de cellules classique à trois électrodes, composé de Ag / AgCl (KCl 3 M) comme référence, d'un fil de platine comme contre-électrode et d'une pâte de carbone modifiée comme électrode de travail, a été utilisé dans l'expérience. Résultats: Dans des conditions expérimentales optimisées, l’électrode a révélé une relation linéaire entre le courant de pic d’oxydation et la concentration en AA sur une large plage allant de 0,01 à 10 mM avec une LD de 0,006 mM (3 Sb / m). Les résultats ont montré que 100 fois plus de Na (+), K (+), Mg (2) +, Ca (2+), Cl (-), SO (4) (2-), sorbitol, saccharose, fructose, L'acide citrique, 40 fois le NO (3) -, le glucose, le saccharose, l'urée et 10 fois l'acide urique n'avaient pas d'interférence significative. La méthode a été adaptée pour la détermination de la concentration en AA présente dans deux échantillons réels (comprimé de vitamine C et comprimé effervescent de vitamine C) avec une récupération de 97,0 et 96,0%, respectivement. Conclusions: Une électrode modifiée simple, sensible et fiable a été établie et appliquée pour la détermination de l'AA. Points forts: L'électrode modifiée représentait une bonne performance dans l'analyse de l'échantillon réel.
Source: https://www.ncbi.nlm.nih.gov/pubmed/30103843