Page 1 of 1

syringe filter membrane

Posted: Tue May 08, 2012 6:43 pm
by jiangds06
how do I choose syringe filter in order to minimize adsorption of hydrophobic analytes in aqueous phase? nylon? PTFE? GSH? cellulose?

Re: syringe filter membrane

Posted: Tue May 08, 2012 6:51 pm
by unmgvar
the way we do it is to try them all.
and compare it to a sample solution that has been centrifuged at high RPMs from which you have injected the supernatant solution
any column can take a few injections of this, even UHPLC. and in most cases 1 is sufficient

Re: syringe filter membrane

Posted: Wed May 16, 2012 10:16 pm
by Sallybeetle
Essentially, I follow the same technique. However, if I am unfamiliar with the class of analytes / matrix, then I will also refer to different vendor websites for syringe filter selection and technical support.