Thiocyanate and nitrite analysis using miniaturised isotachophoresis on a planar polymer chip

Jeff E. Prest; Sara J. Baldock; Matthew S. Beardah; Sean P. Doyle; Peter R. Fielden; Nicholas J. Goddard; Bernard J. Treves Brown

doi:10.1039/c0an00400f

Thiocyanate and nitrite analysis using miniaturised isotachophoresis on a planar polymer chip

Jeff E. Prest, Sara J. Baldock, Matthew S. Beardah, Sean P. Doyle, Peter R. Fielden, Nicholas J. Goddard, Bernard J. Treves Brown

Research output: Contribution to journal › Article › peer-review

Abstract

A new method has been developed to improve the determination of thiocyanate using isotachophoresis. This method uses complexation with copper(II) as a mechanism for improving the separation of thiocyanate from chlorate and perchlorate. By using a pH of 3.25 the method can also be used to analyse nitrite. Separations were carried out using a miniaturised poly(methyl methacrylate) (PMMA) separation device. Linearity was observed from 1.25 to 75 mg dm-3 with a correlation coefficient of 0.998 for both thiocyanate and nitrite. Limits of detection for these two species were calculated to be 0.8 mg dm-3 and 0.9 mg dm-3 respectively. The method was successfully applied to the analysis of these anions in a range of samples including explosive residues. © The Royal Society of Chemistry 2011.

Original language	English
Pages (from-to)	3170-3176
Number of pages	6
Journal	Analyst
Volume	136
Issue number	15
DOIs	https://doi.org/10.1039/c0an00400f
Publication status	Published - 7 Aug 2011

Keywords

ITP
EXPLOSIVE RESIDUES
SMALL CATIONS
CHIP PMMA
SCN
NITRITE

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10.1039/c0an00400f

http://dx.doi.org/10.1039/C0AN00400F

Cite this

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title = "Thiocyanate and nitrite analysis using miniaturised isotachophoresis on a planar polymer chip",

abstract = "A new method has been developed to improve the determination of thiocyanate using isotachophoresis. This method uses complexation with copper(II) as a mechanism for improving the separation of thiocyanate from chlorate and perchlorate. By using a pH of 3.25 the method can also be used to analyse nitrite. Separations were carried out using a miniaturised poly(methyl methacrylate) (PMMA) separation device. Linearity was observed from 1.25 to 75 mg dm-3 with a correlation coefficient of 0.998 for both thiocyanate and nitrite. Limits of detection for these two species were calculated to be 0.8 mg dm-3 and 0.9 mg dm-3 respectively. The method was successfully applied to the analysis of these anions in a range of samples including explosive residues. {\textcopyright} The Royal Society of Chemistry 2011.",

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author = "Prest, {Jeff E.} and Baldock, {Sara J.} and Beardah, {Matthew S.} and Doyle, {Sean P.} and Fielden, {Peter R.} and Goddard, {Nicholas J.} and {Treves Brown}, {Bernard J.}",

year = "2011",

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doi = "10.1039/c0an00400f",

language = "English",

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T1 - Thiocyanate and nitrite analysis using miniaturised isotachophoresis on a planar polymer chip

AU - Prest, Jeff E.

AU - Baldock, Sara J.

AU - Beardah, Matthew S.

AU - Doyle, Sean P.

AU - Fielden, Peter R.

AU - Goddard, Nicholas J.

AU - Treves Brown, Bernard J.

PY - 2011/8/7

Y1 - 2011/8/7

N2 - A new method has been developed to improve the determination of thiocyanate using isotachophoresis. This method uses complexation with copper(II) as a mechanism for improving the separation of thiocyanate from chlorate and perchlorate. By using a pH of 3.25 the method can also be used to analyse nitrite. Separations were carried out using a miniaturised poly(methyl methacrylate) (PMMA) separation device. Linearity was observed from 1.25 to 75 mg dm-3 with a correlation coefficient of 0.998 for both thiocyanate and nitrite. Limits of detection for these two species were calculated to be 0.8 mg dm-3 and 0.9 mg dm-3 respectively. The method was successfully applied to the analysis of these anions in a range of samples including explosive residues. © The Royal Society of Chemistry 2011.

AB - A new method has been developed to improve the determination of thiocyanate using isotachophoresis. This method uses complexation with copper(II) as a mechanism for improving the separation of thiocyanate from chlorate and perchlorate. By using a pH of 3.25 the method can also be used to analyse nitrite. Separations were carried out using a miniaturised poly(methyl methacrylate) (PMMA) separation device. Linearity was observed from 1.25 to 75 mg dm-3 with a correlation coefficient of 0.998 for both thiocyanate and nitrite. Limits of detection for these two species were calculated to be 0.8 mg dm-3 and 0.9 mg dm-3 respectively. The method was successfully applied to the analysis of these anions in a range of samples including explosive residues. © The Royal Society of Chemistry 2011.

KW - ITP

KW - EXPLOSIVE RESIDUES

KW - SMALL CATIONS

KW - CHIP PMMA

KW - SCN

KW - NITRITE

U2 - 10.1039/c0an00400f

DO - 10.1039/c0an00400f

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VL - 136

SP - 3170

EP - 3176

JO - Analyst

JF - Analyst

IS - 15

ER -

Thiocyanate and nitrite analysis using miniaturised isotachophoresis on a planar polymer chip

Abstract

Keywords

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