Redox titration on foldable paper-based analytical devices for the visual determination of alcohol content in whiskey samples.
Alcoholic beverages
Crime scene
Food control
Forensic chemistry
Paper microfluidics
Point-of-need
Journal
Talanta
ISSN: 1873-3573
Titre abrégé: Talanta
Pays: Netherlands
ID NLM: 2984816R
Informations de publication
Date de publication:
01 Mar 2019
01 Mar 2019
Historique:
received:
01
08
2018
revised:
09
10
2018
accepted:
09
10
2018
entrez:
6
1
2019
pubmed:
6
1
2019
medline:
6
1
2019
Statut:
ppublish
Résumé
This report describes the development of foldable paper-based analytical devices (PADs) to perform redox titrations. Paper devices were designed to contain three spot tests, which were wax printed and folded to create a three-layer structured platform and to promote the sample transport based on vertical flow. The proposed devices were explored for the visual determination of the alcoholic content in whiskey samples. For this purpose, a classical permanganometry reaction was employed to allow the indirect determination of ethanol based on the required amount of oxalic acid to react with the excess of permanganate in acidic medium. The endpoint of the redox titrations performed in different alcoholic concentrations was measured and revealed a good linear behavior for the ethanol concentration range between 0% and 50% (R
Identifiants
pubmed: 30609544
pii: S0039-9140(18)31070-1
doi: 10.1016/j.talanta.2018.10.036
pii:
doi:
Types de publication
Journal Article
Langues
eng
Pagination
363-369Informations de copyright
Copyright © 2018 Elsevier B.V. All rights reserved.