Detection of explosives by plasma optical emission spectroscopy

Jane H. Fujiyama-Novak; Chethan Kumar Gaddam; Debanjan Das; Randall L.Vander Wal; Benjamin Ward

doi:10.1016/j.snb.2012.08.063

Detection of explosives by plasma optical emission spectroscopy

Jane H. Fujiyama-Novak, Chethan Kumar Gaddam, Debanjan Das, Randall L.Vander Wal, Benjamin Ward

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

19 Scopus citations

Abstract

A new pre-concentration/separation system coupled to a micro-hollow glow discharge (MHGD) plasma detector is demonstrated for the analysis of explosives. The detector and spectrometer are miniaturized and field-portable. Separation eliminated air interferences while pre-concentration improved detection limits for TATP (triacetone triperoxide) and DNT (dinitrotoluene). In the analysis step, a temperature ramp desorbed the two explosives into an entraining Ar flow. Optical emission spectroscopy (OES) was applied to detect the plasma generated atomic and diatomic radicals using a spectrometer at atmospheric pressure. For both test species, the detection limits reached values lower than 5 ppb. The effect of an at-sea environment was also evaluated. Such a detector system is very promising for the detection of explosives due its small size, high sensitivity and selectivity.

Original language	English (US)
Pages (from-to)	985-993
Number of pages	9
Journal	Sensors and Actuators, B: Chemical
Volume	176
DOIs	https://doi.org/10.1016/j.snb.2012.08.063
State	Published - 2013

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2012.08.063

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title = "Detection of explosives by plasma optical emission spectroscopy",

abstract = "A new pre-concentration/separation system coupled to a micro-hollow glow discharge (MHGD) plasma detector is demonstrated for the analysis of explosives. The detector and spectrometer are miniaturized and field-portable. Separation eliminated air interferences while pre-concentration improved detection limits for TATP (triacetone triperoxide) and DNT (dinitrotoluene). In the analysis step, a temperature ramp desorbed the two explosives into an entraining Ar flow. Optical emission spectroscopy (OES) was applied to detect the plasma generated atomic and diatomic radicals using a spectrometer at atmospheric pressure. For both test species, the detection limits reached values lower than 5 ppb. The effect of an at-sea environment was also evaluated. Such a detector system is very promising for the detection of explosives due its small size, high sensitivity and selectivity.",

author = "Fujiyama-Novak, {Jane H.} and Gaddam, {Chethan Kumar} and Debanjan Das and Wal, {Randall L.Vander} and Benjamin Ward",

note = "Funding Information: The work was supported through a Phase II STTR with the U.S. Navy Naval Air Warfare Center (NAVAIR), Contract No. N68335-08-C-0020. ",

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doi = "10.1016/j.snb.2012.08.063",

language = "English (US)",

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T1 - Detection of explosives by plasma optical emission spectroscopy

AU - Fujiyama-Novak, Jane H.

AU - Gaddam, Chethan Kumar

AU - Das, Debanjan

AU - Wal, Randall L.Vander

AU - Ward, Benjamin

N1 - Funding Information: The work was supported through a Phase II STTR with the U.S. Navy Naval Air Warfare Center (NAVAIR), Contract No. N68335-08-C-0020.

PY - 2013

Y1 - 2013

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AB - A new pre-concentration/separation system coupled to a micro-hollow glow discharge (MHGD) plasma detector is demonstrated for the analysis of explosives. The detector and spectrometer are miniaturized and field-portable. Separation eliminated air interferences while pre-concentration improved detection limits for TATP (triacetone triperoxide) and DNT (dinitrotoluene). In the analysis step, a temperature ramp desorbed the two explosives into an entraining Ar flow. Optical emission spectroscopy (OES) was applied to detect the plasma generated atomic and diatomic radicals using a spectrometer at atmospheric pressure. For both test species, the detection limits reached values lower than 5 ppb. The effect of an at-sea environment was also evaluated. Such a detector system is very promising for the detection of explosives due its small size, high sensitivity and selectivity.

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JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

ER -

Detection of explosives by plasma optical emission spectroscopy

Abstract

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