Methods of improving the resolving power of quadrupole mass analyzers were studied theoretically.The results showed that use of two AC powers on top of the
With the launch of first commercial Inductively Coupled Plasma MassSpectrometry(ICP-MS) system,Elan 250 in 1983,PerkinElmer has becomethe leader for elemental m
Thin layer chromatography(TLC)separates chemical and biochemical mixtures on a plate.This technique owns unique advantages including minimum or no sample pr