DETECTION AND IDENTIFICATION OF EXPLOSIVES COMPOUNDS USING LASER IONIZATION TIME-OF-FLIGHT TECHNIQUES

被引：20

作者：

MARSHALL, A ^{[1
]}

CLARK, A ^{[1
]}

LEDINGHAM, KWD ^{[1
]}

SANDER, J ^{[1
]}

SINGHAL, RP ^{[1
]}

KOSMIDIS, C ^{[1
]}

DEAS, RM ^{[1
]}

机构：

[1] UNIV IOANNINA,DEPT PHYS,GR-45110 IOANNINA,GREECE

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1994年 / 8卷 / 07期

关键词：

D O I：

10.1002/rcm.1290080706

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Resonance-enhanced multiphoton ionization has been used to detect the presence of vapour-phase explosive-type samples in a linear time-of-flight (TOF) mass spectrometer. In particular, nitrobenzene, 2-nitrotoluene, 2,4-dinitrotoluene, 2,4,6-trinitrotoluene, ethylene glycol dinitrate, pentaerythritol tetranitrate (PETN), 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX) and SEMTEX (PETN plus RDX plus plasticizer) have been analysed at a laser wavelength of 226.3 nm corresponding to a strong resonant transition of the neutral NO molecule. TOF mass spectra have been recorded and the intensity of the NO+ ion monitored as a function of temperature for comparison with the temperature dependence of the various vapour pressures.

引用

页码：521 / 526

页数：6

共 18 条

[1] NEGATIVE CHEMICAL IONIZATION MASS-SPECTROMETRY OF EXPLOSIVES [J].