By phil Cousins on Wednesday, March 13, 2002 - 10:16 am:
Hi
I'm looking at possibilities for in line GC analysis. I need to sample a liquid stream several meters away from the GC, analyse a sample and provide data to a control system.
Are there any companies who deal with this kind of setup or do you have any experience of this kind of thing?
Thanks
Phil
By Beppe on Wednesday, March 13, 2002 - 11:47 pm:
I would look into two directions :
1- most of the GC makers should be able to provide a solution based on a loop and valve system; ask them.
2- CTC (www.ctc.ch) has a system based on a circulation cell from which their CombiPAL autosampler takes samples and inject them in the GC (CombiPAL software is in some way compatible with most of Chromatography softwares).
By Anonymous on Thursday, March 14, 2002 - 06:32 am:
You need a sampling system which will give you an authentic sample of the liquid stream in a vaporized form. This is not a do-it-yourself project. Get expert help.
Two companies come to mind immediately:
Siemens Applied Automation
500 W. Highway 60
Bartlesville, Ok 74003
ABB
843 N. Jefferson St.
Lewisburg, WV 24901
By Phil,Cousins on Saturday, March 16, 2002 - 05:13 am:
I should add.
The sample is approx 95% ethanol with water and other alcohols.
Standard liquid phase injection is what I want, its getting the sample into the GC which will be the difficult bit.
Phil
By Anonymous on Monday, March 25, 2002 - 01:15 pm:
Wasson Instruments is another manufacturer.
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