Direct chronoamperometric determination of free available chlorine in soil samples using built-in diffusion layer coated glassy carbon electrode

László Kiss, Barna Kovács, G. Nagy

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this work, a glassy carbon electrode supplied with a built-in diffusion layer and a short-time chronoamperometric method were used for obtaining reliable concentration values from I–t curves recorded in tortuous media. It was proved that short-time chronoamperometric transients taken with the modified electrode in tortuous matrices can be evaluated using calibrating data recorded in simple aqueous standards. The applicability of the in situ analytical method was tested for determination of active chlorine concentration in different bleaching powder treated soil samples. Iodometric titrations were employed for comparison. The results prove that residual concentration of active chlorine can be estimated with 0.66 % relative standard deviation using the proposed in situ chronoamperometric measuring methods in humid soil slurry after bleaching powder disinfection.

Original languageEnglish
Pages (from-to)261-267
Number of pages7
JournalJournal of Solid State Electrochemistry
Volume19
Issue number1
DOIs
Publication statusPublished - 2014

Fingerprint

Chlorine
glassy carbon
Glassy carbon
Bleaching
Powders
chlorine
soils
bleaching
Soils
Electrodes
electrodes
Disinfection
Titration
calibrating
titration
standard deviation
curves
matrices

Keywords

  • Bleaching powder
  • Built-in diffusion layer
  • Calcium hypochlorite
  • Chronoamperometry
  • Soil

ASJC Scopus subject areas

  • Electrochemistry
  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Materials Science(all)

Cite this

@article{8f194f7ca46a4587a238edae6d0490e2,
title = "Direct chronoamperometric determination of free available chlorine in soil samples using built-in diffusion layer coated glassy carbon electrode",
abstract = "In this work, a glassy carbon electrode supplied with a built-in diffusion layer and a short-time chronoamperometric method were used for obtaining reliable concentration values from I–t curves recorded in tortuous media. It was proved that short-time chronoamperometric transients taken with the modified electrode in tortuous matrices can be evaluated using calibrating data recorded in simple aqueous standards. The applicability of the in situ analytical method was tested for determination of active chlorine concentration in different bleaching powder treated soil samples. Iodometric titrations were employed for comparison. The results prove that residual concentration of active chlorine can be estimated with 0.66 {\%} relative standard deviation using the proposed in situ chronoamperometric measuring methods in humid soil slurry after bleaching powder disinfection.",
keywords = "Bleaching powder, Built-in diffusion layer, Calcium hypochlorite, Chronoamperometry, Soil",
author = "L{\'a}szl{\'o} Kiss and Barna Kov{\'a}cs and G. Nagy",
year = "2014",
doi = "10.1007/s10008-014-2596-7",
language = "English",
volume = "19",
pages = "261--267",
journal = "Journal of Solid State Electrochemistry",
issn = "1432-8488",
publisher = "Springer Verlag",
number = "1",

}

TY - JOUR

T1 - Direct chronoamperometric determination of free available chlorine in soil samples using built-in diffusion layer coated glassy carbon electrode

AU - Kiss, László

AU - Kovács, Barna

AU - Nagy, G.

PY - 2014

Y1 - 2014

N2 - In this work, a glassy carbon electrode supplied with a built-in diffusion layer and a short-time chronoamperometric method were used for obtaining reliable concentration values from I–t curves recorded in tortuous media. It was proved that short-time chronoamperometric transients taken with the modified electrode in tortuous matrices can be evaluated using calibrating data recorded in simple aqueous standards. The applicability of the in situ analytical method was tested for determination of active chlorine concentration in different bleaching powder treated soil samples. Iodometric titrations were employed for comparison. The results prove that residual concentration of active chlorine can be estimated with 0.66 % relative standard deviation using the proposed in situ chronoamperometric measuring methods in humid soil slurry after bleaching powder disinfection.

AB - In this work, a glassy carbon electrode supplied with a built-in diffusion layer and a short-time chronoamperometric method were used for obtaining reliable concentration values from I–t curves recorded in tortuous media. It was proved that short-time chronoamperometric transients taken with the modified electrode in tortuous matrices can be evaluated using calibrating data recorded in simple aqueous standards. The applicability of the in situ analytical method was tested for determination of active chlorine concentration in different bleaching powder treated soil samples. Iodometric titrations were employed for comparison. The results prove that residual concentration of active chlorine can be estimated with 0.66 % relative standard deviation using the proposed in situ chronoamperometric measuring methods in humid soil slurry after bleaching powder disinfection.

KW - Bleaching powder

KW - Built-in diffusion layer

KW - Calcium hypochlorite

KW - Chronoamperometry

KW - Soil

UR - http://www.scopus.com/inward/record.url?scp=84921068656&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921068656&partnerID=8YFLogxK

U2 - 10.1007/s10008-014-2596-7

DO - 10.1007/s10008-014-2596-7

M3 - Article

VL - 19

SP - 261

EP - 267

JO - Journal of Solid State Electrochemistry

JF - Journal of Solid State Electrochemistry

SN - 1432-8488

IS - 1

ER -