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hplc column

Posted: Thu Jun 28, 2012 4:14 pm
by hariom tomar
Why hplc columns bonded carbon chain donot have more than c18 ?

Re: hplc column

Posted: Thu Jun 28, 2012 7:46 pm
by tom jupille
There *are* longer-chain columns. For example:
http://www.phenomenex.com/Products/Sear ... hwodvQm3kw

It's simply that C18 was one of the first things they tried and, except for special cases (e.g., vitamin D isomers) a longer chain really provides no benefit.