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cellulose and PEG (Polyethylene Glycol) HPLC method ?

http://www.chromforum.org/viewtopic.php?t=16207

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cellulose and PEG (Polyethylene Glycol) HPLC method ?

Posted: Thu Mar 31, 2011 1:21 am
by raj_2011
looking for a hplc assay method for the above constituents.

Re: cellulose and PEG (Polyethylene Glycol) HPLC method ?

Posted: Thu Mar 31, 2011 12:43 pm
by Gerhard Kratz
That's done by SEC/GPC (water soluble compounds). A polymer based SEC column would be my first choice.

Re: cellulose and PEG (Polyethylene Glycol) HPLC method ?

Posted: Wed Apr 13, 2011 9:59 pm
by SeanAustin
cellulose is not very soluble - best way to analyse cellulose is to hydrolyse it to glucose then analyse the released glucose.

For PEG - HPSEC should be Ok.

Re: cellulose and PEG (Polyethylene Glycol) HPLC method ?

Posted: Thu Apr 14, 2011 9:16 am
by DSP007
looking for a hplc assay method for the above constituents.
For cellulose HPLC do not apply. This is a very high molecular weight polysaccharide. PEG-PEG is different. PEG-400 is one, and PEG-40M is another.
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