-
公开(公告)号:US5766954A
公开(公告)日:1998-06-16
申请号:US635938
申请日:1996-04-26
IPC分类号: G01N31/00 , B01D59/44 , G01N27/62 , G01N30/02 , G01N30/72 , G01N30/84 , G01N30/88 , G01N31/12 , G01N33/28 , G01N33/00
CPC分类号: G01N30/84 , B01D59/44 , G01N31/12 , G01N33/2835 , G01N2030/025 , G01N2030/8405 , G01N30/7206 , Y10T436/22 , Y10T436/24 , Y10T436/25875
摘要: A continuous flow method of determining the quantitative isotopic composition of hydrogen comprised in a compound is disclosed, together with apparatus for carrying out the method. The method involves introducing the sample to be analysed into a flow of carrier gas which does not contain hydrogen, the carrier gas then being arranged to flow through a heated catalytic reactor which contain a chromium-based catalyst. The sample is pyrolysed in the catalytic reactor so as to form molecular hydrogen which is then analysed mass-spectrometrically. Preferably a gas chromatrograph is disposed before the catalytic reactor so that one or more components or a mixture may be separately analysed.
摘要翻译: PCT No.PCT / GB95 / 02192 Sec。 371日期:1996年4月26日 102(e)日期1996年4月26日PCT提交1995年9月15日PCT公布。 第WO96 / 08719号公报 日期:1996年3月21日公开了一种确定化合物中所含的氢的定量同位素组成的连续流动方法以及用于实施该方法的装置。 该方法包括将要分析的样品引入不含氢气的载气流中,然后将载气流经包含铬基催化剂的加热催化反应器。 样品在催化反应器中热解,形成分子氢,然后进行质谱分析。 优选地,气相色谱仪设置在催化反应器之前,使得可以单独分析一种或多种组分或混合物。