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Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.3 P.423-428

http://doi.org/10.1631/jzus.A071360


In-situ measurement of the dissolved S2− in seafloor diffuse flow system: sensor preparation and calibration


Author(s):  Ying YE, Xia HUANG, Yi-wen PAN, Chen-hua HAN, Wei ZHAO

Affiliation(s):  Department of Earth Sciences, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   gsyeying@zju.edu.cn, geology@zju.edu.cn

Key Words:  Solid Ag/Ag2S electrode, Preparation approach, Performance


Ying YE, Xia HUANG, Yi-wen PAN, Chen-hua HAN, Wei ZHAO. In-situ measurement of the dissolved S2− in seafloor diffuse flow system: sensor preparation and calibration[J]. Journal of Zhejiang University Science A, 2008, 9(3): 423-428.

@article{title="In-situ measurement of the dissolved S2− in seafloor diffuse flow system: sensor preparation and calibration",
author="Ying YE, Xia HUANG, Yi-wen PAN, Chen-hua HAN, Wei ZHAO",
journal="Journal of Zhejiang University Science A",
volume="9",
number="3",
pages="423-428",
year="2008",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A071360"
}

%0 Journal Article
%T In-situ measurement of the dissolved S2− in seafloor diffuse flow system: sensor preparation and calibration
%A Ying YE
%A Xia HUANG
%A Yi-wen PAN
%A Chen-hua HAN
%A Wei ZHAO
%J Journal of Zhejiang University SCIENCE A
%V 9
%N 3
%P 423-428
%@ 1673-565X
%D 2008
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A071360

TY - JOUR
T1 - In-situ measurement of the dissolved S2− in seafloor diffuse flow system: sensor preparation and calibration
A1 - Ying YE
A1 - Xia HUANG
A1 - Yi-wen PAN
A1 - Chen-hua HAN
A1 - Wei ZHAO
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 3
SP - 423
EP - 428
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A071360


Abstract: 
The preparation approach and calibration result of an improved type of ion selective electrode (ISE), which is used to measure the total dissolved S2−, are introduced in this paper. The improved Ag/Ag2S electrode uses silver wire as the substrate, which is surrounded by electric polymer containing superfine silver powder. After the stabilization of the epoxy-resin, Ag2S layer was formed by chemical reaction with 0.2 mol/L (NH4)2S solution for 5 min. With Ag/AgCl as reference electrode, the Ag/Ag2S electrode can be used to measure dissolved S2−. The correlation between the measured potentials and the logarithm of dissolved S2− is found to be linear, within range of the concentration of dissolved S2− from 10−2~10−7 mol/L. The slope of the regression line between measured potential and logarithm of dissolved S2− is about −27.7, which agrees well with the theoretical Nernst value −29.6. Furthermore, the performance of the improved Ag/Ag2S electrode, such as the response time, sensitivity and stability, greatly outweighs the conventional Ag/Ag2S electrode.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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