electron impact spectrometry 电子撞击光谱法 electron impact ionization MS 电子轰击电离质谱 electron impact ionization mode 电子撞击离子化 ..
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It is unfavorable to study MS of aminoglycosides using electron impact ionization.
使用电子轰击离子化方法研究氨基糖甙类是不理想的。
Mass spectra (MS) of cholesterol esters and halides were obtained by means of Electron Impact (EI), Field Desorption (FD) and Chemical Ionization (CI).
研究了胆甾醇酯类和胆甾醇卤代物的电子轰击电离(EI)、场解吸电离(FD)、化学电离(CI)的质谱。
Methods: Volatile oil was separated by solvent extraction and analysed by gas chromatography coupled with electron impact ionization-mass spectrometry (GC-MS).
方法:采用溶剂浸渍方法提取冬凌草中的挥发性成分,用GC - MS方法对冬凌草挥发油的化学成分进行分析。
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