Microchip flow-injection analysis of trace 2,4,6-trinitrotoluene (TNT) using mercury-amalgam electrochemical detector

Joseph Wang; Martin Pumera

doi:10.1016/j.talanta.2005.12.001

Microchip flow-injection analysis of trace 2,4,6-trinitrotoluene (TNT) using mercury-amalgam electrochemical detector

Joseph Wang, Martin Pumera

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

35 Citations (Scopus)

Abstract

This paper reports on a microfluidic device for the flow-injection/electrochemistry analysis of nitroaromatic explosive. The response is very fast (150 assays/h), highly sensitive (detection limit 7.0 μg L-1), reproducible and stable (R.S.D. = 2.0%; n = 30) and linear (over 20-100 μg L-1 range). Relevant experimental parameters have been optimized. The new microsystem offers great promise for on-site monitoring of TNT, with significant advantages of speed/warning, sample size, efficiency and cost. Most favorable S/N characteristics were obtained at the Hg/Au-amalgam end-channel detector. © 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	984-987
Journal	Talanta
Volume	69
Issue number	4
DOIs	https://doi.org/10.1016/j.talanta.2005.12.001
Publication status	Published - 15 Jun 2006

Keywords

Electrochemistry
Explosives
Flow-injection analysis
Microfluidics

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title = "Microchip flow-injection analysis of trace 2,4,6-trinitrotoluene (TNT) using mercury-amalgam electrochemical detector",

abstract = "This paper reports on a microfluidic device for the flow-injection/electrochemistry analysis of nitroaromatic explosive. The response is very fast (150 assays/h), highly sensitive (detection limit 7.0 μg L-1), reproducible and stable (R.S.D. = 2.0%; n = 30) and linear (over 20-100 μg L-1 range). Relevant experimental parameters have been optimized. The new microsystem offers great promise for on-site monitoring of TNT, with significant advantages of speed/warning, sample size, efficiency and cost. Most favorable S/N characteristics were obtained at the Hg/Au-amalgam end-channel detector. {\textcopyright} 2005 Elsevier B.V. All rights reserved.",

keywords = "Electrochemistry, Explosives, Flow-injection analysis, Microfluidics",

author = "Joseph Wang and Martin Pumera",

year = "2006",

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language = "English",

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T1 - Microchip flow-injection analysis of trace 2,4,6-trinitrotoluene (TNT) using mercury-amalgam electrochemical detector

AU - Wang, Joseph

AU - Pumera, Martin

PY - 2006/6/15

Y1 - 2006/6/15

N2 - This paper reports on a microfluidic device for the flow-injection/electrochemistry analysis of nitroaromatic explosive. The response is very fast (150 assays/h), highly sensitive (detection limit 7.0 μg L-1), reproducible and stable (R.S.D. = 2.0%; n = 30) and linear (over 20-100 μg L-1 range). Relevant experimental parameters have been optimized. The new microsystem offers great promise for on-site monitoring of TNT, with significant advantages of speed/warning, sample size, efficiency and cost. Most favorable S/N characteristics were obtained at the Hg/Au-amalgam end-channel detector. © 2005 Elsevier B.V. All rights reserved.

AB - This paper reports on a microfluidic device for the flow-injection/electrochemistry analysis of nitroaromatic explosive. The response is very fast (150 assays/h), highly sensitive (detection limit 7.0 μg L-1), reproducible and stable (R.S.D. = 2.0%; n = 30) and linear (over 20-100 μg L-1 range). Relevant experimental parameters have been optimized. The new microsystem offers great promise for on-site monitoring of TNT, with significant advantages of speed/warning, sample size, efficiency and cost. Most favorable S/N characteristics were obtained at the Hg/Au-amalgam end-channel detector. © 2005 Elsevier B.V. All rights reserved.

KW - Electrochemistry

KW - Explosives

KW - Flow-injection analysis

KW - Microfluidics

U2 - 10.1016/j.talanta.2005.12.001

DO - 10.1016/j.talanta.2005.12.001

M3 - Article

VL - 69

SP - 984

EP - 987

IS - 4

ER -