Detection of water

Chromatography Forum: GC Archives: Detection of water
Top of pagePrevious messageNext messageBottom of pageLink to this message  By Michael on Thursday, July 15, 2004 - 01:41 am:

To see what the influence of water is on a katalysator we are feeding water to it, together with a few other components. The amount of water is analysed with a TCD and a Hayesep Q column of 2 meters. The tail of the water peak is overlapping the next peak propylene. Does somebody has experience with wateranalyses and knows how to solve this problem? Longer colum...?

Thank You


Top of pagePrevious messageNext messageBottom of pageLink to this message  By chdromatographer1 on Thursday, July 15, 2004 - 09:07 am:

Try a faster flow rate and a lower temperature or

Slower flow rate and a higher temperature or

Lower the sample injection volume or

Try glass rather than metal column or

Review hardware configuration to minimize dead volume and bare metal exposed in your system or

Try Porapak or Hayesep R support or 3% CWax on Chromosorb 101


Top of pagePrevious messageNext messageBottom of pageLink to this message  By john on Friday, July 23, 2004 - 12:41 am:

We are doing determination of the content of water in silicons for at least 3 years !
At the beginning we had a similar problem with the tailing of the peak !
Now we use another column: CP-Volamin (60 m - 0,32 mm I.D.) and the water-peak is without any tailing !!!


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