公开(公告)号：EP2518489A1

公开(公告)日：2012-10-31

申请号：EP10845684.9

申请日：2010-02-12

申请人： GL Sciences Incorporated

发明人： SOTOMARU, Katsuhiko ,  ZHOU, Xiao-jing ,  YAMASAKI, Kazuhiko ,  SATO, Atsushi

IPC分类号： G01N30/08 ,  G01N30/00 ,  G01N30/04

CPC分类号： G01N30/12 ,  F25B9/14 ,  G01N1/40 ,  G01N30/465 ,  G01N30/7206 ,  G01N2001/4033 ,  G01N2030/085 ,  G01N2030/121 ,  G01N2030/122 ,  G01N2030/128 ,  G01N2030/884

摘要： An object of the present invention is to provide a sample trapping method and a sample trapping apparatus. The present invention is suitable, for example, for analysis by a gas chromatograph-mass spectrometer. A sample is not cooled by a refrigerant such as liquid nitrogen in the present invention. Instead, a cold storage refrigerator such as a Stirling refrigerator or a Gifford-McMahon refrigerator is used. As a result, the operability is improved and the running cost is reduced. In addition, a refrigerant pipe is not used in the present invention. It is thus possible to reduce the size and weight of the apparatus, to improve the efficiency and accuracy for cooling the sample, and to rapidly cool the sample. Furthermore, it is possible to rapidly heat the sample. As a result, the trapped sample is instantaneously desorbed. Therefore, the present invention makes it possible to achieve cryofocusing in gas chromatography (particularly in high-speed gas chromatography).
Solutions of the present invention include a sample trapping method using a sample conduit for trapping a gas sample by cooling or desorbing the gas sample by heating. The solutions further include cooling a sample conduit (17) by arranging the sample conduit (17) in the vicinity of, or bringing the sample conduit (17) into contact with, a cooling part of a cooling device (20) based on a cold storage refrigerator.

摘要翻译： 本发明的目的是提供一种样品捕集方法和一种样品捕集装置。 本发明适用于例如气相色谱 - 质谱仪的分析。 在本发明中，样品不被诸如液氮的制冷剂冷却。 相反，使用诸如斯特林冰箱或吉福德 - 麦克马洪冰箱的冷藏冰箱。 结果，可操作性提高，运行成本降低。 此外，在本发明中不使用制冷剂管。 因此，可以减小设备的尺寸和重量，提高冷却样品的效率和精度，并快速冷却样品。 此外，可以快速加热样品。 结果，捕获的样品瞬间解吸。 因此，本发明可以在气相色谱法（特别是高速气相色谱法）中实现冷凝。 本发明的解决方案包括使用样品导管用于通过加热冷却或解吸气体样品来捕集气体样品的样品捕集方法。 解决方案还包括通过将样品管道（17）布置在基于冷的冷却装置（20）的冷却部分附近或使样品管道（17）接触的方式来冷却样品管道（17） 存储冰​​箱