Trace Detection of 2, 4, 6-Trinitrotoluene Using Electrochemical Gas Sensors

被引：1

作者：

Sekhar, P. K. ^{[1
]}

Zhou, Jie ^{[1
]}

Hamblin, E. R. ^{[1
]}

Brosha, E. L. ^{[2
]}

机构：

[1] Washington State Univ Vancouver, Sch Engn & Comp Sci, Nanomat & Sensor Lab, Vancouver, WA 98686 USA

[2] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87685 USA

来源：

CHEMICAL AND BIOLOGICAL SENSORS 11 -AND- MEMS-NEMS 11 | 2014年 / 64卷 / 01期

关键词：

SOLID-ELECTROLYTE; TNT; SPECTROMETRY;

D O I：

10.1149/06401.0085ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this article, selective and sensitive detection of trace amounts of 2, 4, 6-trinitrotoluene (TNT) is demonstrated. The screening system is based on a sampling/concentrator front end and electrochemical potentiometric gas sensors as the detector. Preferential hydrocarbon and nitrogen oxide(s) mixed potential sensors with integrated heaters were used to capture the signature of the explosive. Quantitative measurements based on hydrocarbon and nitrogen oxide sensor responses indicated that the detector sensitivity scaled proportionally with the mass of the explosives (down to 250 ng). The sensitivity was found to increase with increasing flow rate.

引用

页码：85 / 93

页数：9

共 23 条

[1] Data Analysis Tool for Comprehensive Two-Dimensional Gas Chromatography/Time-of-Flight Mass Spectrometry [J].

Castillo, Sandra ;

Mattila, Ismo ;

Miettinen, Jarkko ;

Oresic, Matej ;

Hyotylainen, Tuulia .

ANALYTICAL CHEMISTRY, 2011, 83 (08) :3058-3067

[2] Disposable screen-printed sensors for the electrochemical detection of TNT and DNT [J].

Caygill, J. Sarah ;

Collyer, Stuart D. ;

Holmes, Joanne L. ;

Davis, Frank ;

Higson, Seamus P. J. .

ANALYST, 2013, 138 (01) :346-352

[3] Sensors based on surface plasmon resonance in a plastic optical fiber for the detection of trinitrotoluene [J].

Cennamo, N. ;

D'Agostino, G. ;

Galatus, R. ;

Bibbo, L. ;

Pesavento, M. ;

Zeni, L. .

SENSORS AND ACTUATORS B-CHEMICAL, 2013, 188 :221-226

[4] Sensing mechanism of non-equilibrium solid-electrolyte-based chemical sensors [J].

Fergus, Jeffrey W. .

JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2011, 15 (05) :971-984

[5] Interfacing an Ion Mobility Spectrometry Based Explosive Trace Detector to a Triple Quadrupole Mass Spectrometer [J].

Kozole, Joseph ;

Stairs, Jason R. ;

Cho, Inho ;

Harper, Jason D. ;

Lukow, Stefan R. ;

Lareau, Richard T. ;

DeBono, Reno ;

Kuja, Frank .

ANALYTICAL CHEMISTRY, 2011, 83 (22) :8596-8603

[6] A new method for membrane-based gas measurements [J].

Lazik, D ;

Geistinger, H .

SENSORS AND ACTUATORS A-PHYSICAL, 2005, 117 (02) :241-251

[7]

Linker K. L., 1998, US Patent, Patent No. [5854431, 5,854,431]

[8]

Linker K. L., 2003, US Patent, Patent No. 6523393

[9] Graphene nanosheets-supported Ag nanoparticles for ultrasensitive detection of TNT by surface-enhanced Raman spectroscopy [J].

Liu, Minmin ;

Chen, Wei .

BIOSENSORS & BIOELECTRONICS, 2013, 46 :68-73

[10] Progress in mixed-potential type devices based on solid electrolyte for sensing redox gases [J].

Miura, N ;

Lu, GY ;

Yamazoe, N .

SOLID STATE IONICS, 2000, 136 :533-542

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