hello!!
I need to Know de concentration of pentaeritriol and di-pentaeritritiol of the ester of there, but I have a problem, one I don't analize by GC pentaeritriol because is a sublime sustance, and second I need a method of determination di-pentaeritritiol ester and mono-pentaeritritiol ester, and I don't Knonw any method.
can I help me?
Regards.
Sonia ( I+D)