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Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Filename: drivers/Session_files_driver.php
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File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
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Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
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Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 315
Backtrace:
File: /home/orthodiedw/nutridatabase/application/controllers/Articles.php
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Function: require_once
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Message: Return type of CI_Session_files_driver::gc($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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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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Severity: Warning
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
Line: 7
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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Filename: Session/Session.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
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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/index.php
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Filename: Session/Session.php
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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
Function: __construct
File: /home/orthodiedw/nutridatabase/index.php
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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
Un dosage colorimétrique hautement sensible et sélectif est proposé pour la détection des ions mercure (Hg (2+)), des ions cadmium (Cd (2+)) et de l'acide ascorbique (AA) à l'aide de nanoparticules d'or fonctionnalisées à l'acide trithiocyanurique (TMT) (TMT-AuNPs). Les TMT-AuNPs sont dispersés dans une solution de NaCl à 40 mM, tandis que la présence de Hg (2+) et de Cd (2+) peut induire un agrégat de TMT-AuNPs en raison de la forte interaction de Hg (2+) et de Cd (2+) avec TMT . Ensuite, la détection quantitative de Hg (2+) et de Cd (2+) peut être réalisée dans la plage linéaire allant de 5x10 (-9) à 1x10 (-6) M et de 1x10 (-8) à 3x10 (-7) M, avec une limite de détection inférieure de 2,8nM pour Hg (2+) et 3,5nM pour Cd (2+) (S / N = 3), respectivement. Pour distinguer le Hg (2+) du Cd (2+), on a utilisé un acide ascorbique (AA) à petite molécule biologique réductrice basé sur l’interaction rédox différente de AA avec Hg (2+) et Cd (2+). Lorsque le mélange d'AA et de Hg (2+) a été ajouté à la solution TMT-AuNPs, l'état de TMT-AuNPs était encore dispersé car le Hg (2+) était réduit par AA. Au contraire, lorsque le mélange de AA et de Cd (2+) a été ajouté à la solution TMT-AuNPs, le TMT-AuNPs a été agrégé et la couleur de la solution n'a pas changé de manière évidente par rapport au système de Cd (2 +) - TMT-AuNPs depuis la faible interaction entre AA et Cd (2+). Ainsi, AA pourrait être détecté. Il existe une corrélation linéaire entre le rapport A640 / A520 et la concentration en AA dans l’intervalle allant de 1x10 (-8) à 1x10 (-6) M avec une limite de détection de 4,8nM (S / N = 3). Fait important, il a été appliqué avec succès pour déterminer le Hg (2+), le Cd (2+) dans l’eau de lac et les AA dans des comprimés de vitamines C.
Source: https://www.ncbi.nlm.nih.gov/pubmed/30029374