Thermal desorption solid-phase microextraction inlet for differential mobility spectrometry.

Matthew R Rainsberg; Peter B de Harrington

doi:10.1366/0003702054280630

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PubMed · 16053541

Thermal desorption solid-phase microextraction inlet for differential mobility spectrometry.

Matthew R Rainsberg·Peter B de Harrington

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Abstract

A splitless thermal desorber unit that interfaces a differential mobility spectrometry (DMS) sensor has been devised. This device was characterized by the detection of benzene, toluene, and xylene (BTX) in water. The detection of BTX in water is important for environmental monitoring, and ion mobility measurements are traditionally difficult for hydrocarbons in water because water competes for charge and quenches the hydrocarbon signals. This paper reports the use of a DMS with a photoionization source that is directly coupled to a solid-phase microextraction (SPME) desorber. The separation and detection capabilities of the DMS were demonstrated using BTX components. Detection limits for benzene, toluene, and m-xylene were 75, 50, and 5 microg mL(-1), respectively.

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Adsorption Benzene Complex Mixtures Electrochemistry Equipment Design Equipment Failure Analysis Flow Injection Analysis Microchemistry Phase Transition Spectrum Analysis Temperature Toluene Water Pollutants, Chemical Xylenes Evaluation Study Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S.

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Matthew R Rainsberg, Peter B de Harrington. 2005. Thermal desorption solid-phase microextraction inlet for differential mobility spectrometry.. https://doi.org/10.1366/0003702054280630

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