b)??
8 Answers
sriraghav
·2009-04-30 23:35:23
i think it is a.... it is the latest method acc to me.....n the best for isoltion ,sseperation, n purification
ANKIT MAHATO
·2009-04-30 23:44:31
how can u say it is not efficient .... have u ever seen chromatography being performed ... :)