A direct sample introduction device for mass spectrometry studies and gas chromatography mass spectrometry analyses

被引:125
作者
Amirav, A [1 ]
Dagan, S [1 ]
机构
[1] ISRAEL INST BIOL RES,IL-74100 NESS ZIONA,ISRAEL
来源
EUROPEAN MASS SPECTROMETRY | 1997年 / 3卷 / 02期
关键词
direct sample introduction; probe; extract-free supersonic molecular beams;
D O I
10.1255/ejms.27
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
A novel direct sample introduction (DSI) device is described, based on sample introduction in a disposable mini-vial (test tube) inside the existing gas chromatography (GC) injector, This DSI device effectively transforms a conventional GC injector, followed by a short capillary column, into a very cost-effective alternative to the standard direct insertion probe and enables a continuous sample flux at the mass spectrometer ion source for mass spectrometry (MS) and MS-MS studies, This same device also enables direct introduction of dirty samples for GC and GC-MS analysis, The dirty sample introduction is based on the thermal extraction of semi-volatile sample compounds inside the GC injector, while the non-volatile residue is retained in the sample vial that is disposed of after the analysis, The major capabilities of this new DSI device are demonstrated and its various features are discussed.
引用
收藏
页码:105 / 111
页数:7
相关论文
共 11 条