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H2S on a wax type column

http://www.chromforum.org/viewtopic.php?t=11107

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H2S on a wax type column

Posted: Mon Aug 10, 2009 4:41 pm
by AICMM
Does anyone have any experience running H2S on a wax type phase? Quality of the separation, degradation of the H2S, relative retention?

It has intriguing possibilities but I don't wish to re-invent the wheel if someone has done it and tells me not to.

Best regards.

Posted: Mon Aug 10, 2009 6:54 pm
by chromatographer1
Hi Matthew,

The PEG phase has a basic character as well as an acidic character. This basic character will cause a loss of H2S at low levels and is not the recommended phase for trace or low level H2S analysis. It is preferred to use a FFAP or similar acidic phase or a thick film methyl silicone phase to analyze samples containing H2S.

best wishes,

Rodney George
consultant
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