Detection of microbial volatile organic compounds (MVOCs) by ion-mobility spectrometry

被引：31

作者：

Tiebe, Carlo ^{[1
]}

Miessner, Hans ^{[2
]}

Koch, Bernhard ^{[2
]}

Huebert, Thomas ^{[1
]}

机构：

[1] BAM Fed Inst Mat Res & Testing, D-12200 Berlin, Germany

[2] IUT Inst Environm Technol GmbH, D-12489 Berlin, Germany

来源：

ANALYTICAL AND BIOANALYTICAL CHEMISTRY | 2009年 / 395卷 / 07期

关键词：

Trace gas analysis; MVOCs; Ion-mobility spectrometry; Mould detection; MOLDS; AIR; IDENTIFICATION; H&(H2O)N; NITROGEN; GAS;

D O I：

10.1007/s00216-009-3147-4

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Traces of microbial volatile organic compounds (MVOCs) in air can indicate the presence of growth of moulds in the indoor environment. Ion-mobility spectrometry is a very promising method for detection of these MVOCs, because of its high sensitivity. For development of an in-situ method for detection of MVOCs, a portable ion-mobility spectrometer (IMS) was used and test gases of 14 MVOCs and their respective mixtures were investigated. IMS spectra were recorded as a function of concentration of MVOCs in air. Drift time and mobility of reactant ions formed in positive polarity mode were determined and correlated with the mass-to-charge ratio (m/z) of the MVOCs investigated. The estimated detection limit has a specific value for each MVOC and is in the range 3 to 96 mu g m(-3) (1 to 52 ppb(V)). Indoor trials show that IMS can indicate hidden mould growth.

引用

页码：2313 / 2323

页数：11

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