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離子遷移譜（IMS）直接液體取樣和分析新技術
Direct Liquid Sampling for Corona Discharge Ion Mobility Spectrometry
Martin Sabo,† Michaela Mala?skova?,† Olga Harmathova?,† Jasna Hradski,‡ Maria?n Masa?r,‡
Branislav Radjenovic,§ and S?tefan Matejc?ík*,†
†Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Mlynska?
dolina F2, 842 48, Bratislava, Slovakia
‡Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska?dolina, Ilkovic?ova 6,
842 15, Bratislava, Slovakia
§Institute of Physics, University of Belgrade, P.O. Box 57,Belgrade, Serbia
ABSTRACT
We present a new technique suitable for direct liquid sampling and analysis by ion mobility spectrometry (IMS). The technique is based on introduction of a droplet stream to the IMS reaction region. The technique was successfully used to detect explosives dissolved in methanol and oil as well as to analyze amino acids and dipeptides. One of the main advantages of this technique is its ability to analyze liquid samples without the requirement of any special solution.
提出了一種適用于離子遷移率光譜法(IMS)直接液體取樣分析的新技術。該技術是基于在IMS反應區引入液滴流。該技術已成功地應用于甲醇和石油中的檢測以及氨基酸和二肽的分析。該技術的主要優點之一是無需特殊溶液即可分析液體樣品。
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