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2. 发明专利

AT480769T 未知
公开(公告)号：AT480769T
公开(公告)日：2010-09-15
申请号：AT01306530
申请日：2001-07-31
申请人： MORPHO DETECTION INC
发明人： MCGANN WILLIAM J
IPC分类号： G01N27/62 , G01N27/64 , H01J49/10 , H01J49/12 , H01J49/40
摘要： An ion trap mobility spectrometer (10) is provided for analyzing sample molecules and for identifying the presence of molecules of interest among the sample molecules. The ion trap mobility spectrometer (10) comprises: an inlet (14) for delivering the sample molecules into said ion trap mobility spectrometer; a drift section (26) spaced from said inlet (14) for accommodating a drift of ionized molecules; a collector electrode (30) at an end of said drift section (26) remote from said inlet (14) for collecting ionized molecules drifting through said drift section (26); and a reaction chamber (16) disposed between said inlet (14) and said drift section (26), said reaction chamber (16) having at least one pin electrode (20) disposed therein, said drift section (26) comprising a grid electrode (E 1 ) provided at an opposite end of said reaction chamber (16) from said inlet (14). The reaction chamber (16) further comprises means for driving a voltage of said at least one pin electrode (20) from two different paths to generate substantially equal numbers of positive and negative thermalized reactant ions which are allowed to react with the sample molecules in said reaction chamber (16).

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