A new microconductometric sensor based on a PVC membrane including an o ‐COSAN ion‐pair complex for the detection of caffeine - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Electroanalysis Année : 2024

A new microconductometric sensor based on a PVC membrane including an o ‐COSAN ion‐pair complex for the detection of caffeine

Résumé

Caffeine is a central nervous system (CNS) stimulant and is the most routinely used drug in the world. It is present in coffee, tea, in soft drinks. It is responsible for bitterness in coffee and tea. A new microconductometric sensor for the detection of caffeine was designed, based on a PVC liquid membrane including a [ o ‐COSAN] − /caffeine ion‐pair complex deposited on interdigitated electrodes. This caffeine sensor presents de dynamic range from 10 −6 M to 10 −1 M and a limit of detection of 0.3 μM. The sensor presents good reproducibility (RSD 3 %) and repeatability (RSD 8 %). The shelf‐life time of the sensor was more than three months. The sensor is selective versus interfering components present in the different matrices (coke, tea, and coffee) and was used successfully for the detection of caffeine in these matrices.
Fichier sous embargo
Fichier sous embargo
0 1 2
Année Mois Jours
Avant la publication
lundi 1 juillet 2024
Fichier sous embargo
lundi 1 juillet 2024
Connectez-vous pour demander l'accès au fichier

Dates et versions

hal-04540606 , version 1 (10-04-2024)

Identifiants

Citer

Edward Calzia, Dhekra Ayed, Salwa Ben Aissa, Saber Chatti, Ksenyia Berketa, et al.. A new microconductometric sensor based on a PVC membrane including an o ‐COSAN ion‐pair complex for the detection of caffeine. Electroanalysis, 2024, 36 (4), pp.109957. ⟨10.1002/elan.202300381⟩. ⟨hal-04540606⟩
12 Consultations
3 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More