离子迁移谱（ims）直接液体取样和分析新技术
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.
提出了一种适用于离子迁移率光谱法(ims)直接液体取样分析的新技术。该技术是基于在ims反应区引入液滴流。该技术已成功地应用于甲醇和石油中的检测以及氨基酸和二肽的分析。该技术的主要优点之一是无需特殊溶液即可分析液体样品。