离子化
3.In last few years, two important achievements of ionization techniques in mass spec-trometry have been developed: matrix - assisted laser desorption ionization (MALDI) and electrospray ionization (ESI).
4.The result showed that cationization efficiency reached 99-84.2%, while anionization 40-99% when achieving DSO.
6.On the basis of experimental analysis the author discusses in detail the cause of ionization interference finds a simple method to eliminate it and presents a method of how to determine the parameters of rock pyrolysis after eliminating the ionization interference.
7.The use of sonic spray ionization (SSI) and atmospheric pressure chemical ionization (APCI) methods in liquid chromatography/mass spectrometry (LC MS/MS) was compared for the analysis of reserpine. The analytical results showed that the standard MS and the second order MS (MS2) of reserpine were completely identical in LC MS/MS analysis using the two ionization methods.
8.The study of the upper atmosphere, especially of regions of ionized gas.
9.Method: CBPI-M25-0.25 capillary column and hydrogen flame ionization detector were selected.
10.In addition, divalent metal adduction provided improved positive mode ionization efficiency for these peptides.
