I'm using dimethyl labeling with labels that introduce 28 and 32 Dalton differences. Sometimes I see 6 Dalton in between pairs, what could that be?

Labeling is done using cyanoborohydride, formaldehyde (both deuterated and normal) in a phosphate buffer for 1 hour at RT in solution. It's, ofcourse, mass spectrometry related. ;)

20 May 2016 8,884 12 View