Electrochemical Sensing of Hydrogen Sulfide Traces in Biological Samples

Given that trace level H2S quantitation in biological samples currently requires expensive and time-consuming instrumental procedures, we herein developed an electrochemical Ag/C sensor for the detection of H2S in protein-containing neutral solutions. The detection principle was based on the increas...

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Bibliographic Details
Published in:Electrochemistry
Main Authors: Chiyako TOUGE, Michiyo NAKATSU, Mai SUGIMOTO, Hiroaki SAKAMOTO
Format: Article
Language:English
Published: The Electrochemical Society of Japan 2024-02-01
Subjects:
electrochemical sensor
ag electrode
galvanic current
h2s
Online Access:https://www.jstage.jst.go.jp/article/electrochemistry/92/2/92_23-68118/_html/-char/en
Description
Summary:Given that trace level H2S quantitation in biological samples currently requires expensive and time-consuming instrumental procedures, we herein developed an electrochemical Ag/C sensor for the detection of H2S in protein-containing neutral solutions. The detection principle was based on the increase in galvanic current that was elicited by the sulfidation of the Ag electrode and was linearly dependent on the concentration of H2S. This linear relationship enabled the quantitation of H2S in the concentration range of 0.037–6.7 µmol L−1 in mock biological samples without any pretreatment, highlighting the potential of the Ag/C sensor for the analysis of water quality and food, blood, and other biological samples.
ISSN:2186-2451

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