DETERMINATION OF TRACES OF WATER IN HYDROCARBONS - A CALCIUM CARBIDE-GAS LIQUID CHROMATOGRAPHY METHOD
DETERMINATION OF TRACES OF WATER IN HYDROCARBONS - A CALCIUM CARBIDE-GAS LIQUID CHROMATOGRAPHY METHOD
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DOI：
10.1021/ac60187a010
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发表时间：
1962-01-01
影响因子：
7.4
通讯作者：
WEISS, FT
中科院分区：
文献类型：
--
作者：
KNIGHT, HS;WEISS, FT
结论当催化柱与合适的分析柱(如5A分子筛)联用时，该方法提供了一种目前用热敏电阻或热线检测器无法检测到的一氧化碳含量的测定方法。根据梅德福斯(3)的说法，二氧化碳可以以类似于一氧化碳的方式被还原，这样这种物质也可以用火焰电离检测器进行分析。也有可能通过在载气中引入少量一氧化碳或二氧化碳来检测氢气。在这种情况下，催化剂只需包括在载气中，灵敏度将是甲烷的三分之一。
CONCLUSIONThe catalytic conversion is probably complete and this method offers a way of determining quantities of carbon monoxide at present undetectableby thermister or hot wire detectorswhen the catalyst column is coupled to a suitable analytical column (say 5A Molecular Sieve). According to Medsforth (3) carbon dioxide may be reduced in a similar way to carbon monoxide so that this substance could alsobe analyzed with a flame ionization detector setup. There is also a possibility of detecting hydro-gen by introducing into the carrier gas a small percentage of carbon mon-oxide or carbon dioxide. In this case, the catalyst would have to be included in the carrier gas stream only and the sensitivity would be one third of that for methane.