protease inhibitors in HPLC - trouble with PMSF at 215 nm (Apr/16/2008 )

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Hi !
If, in HPLC, PMSF adsorbance interferes with my peak at 215 nm, what can I do, is possible to change protease inhibitor ?

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it might be the phenyl group of PMSF which causes trouble; some use BSA to minimize unspecific binding to column matrix and to offer a substrate for proteases; other commercial protease ihibitors become expensive if used in larger amounts...

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