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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归纳表明，表面电离质谱和电子轰击电离质谱中分别有50个和77个质荷比处发生谱峰叠加。
The results show that there are 50 and 77 mass charse ratios where the overlap interference of spectrum peaks may…
归纳表明，表面电离质谱和电子轰击电离质谱中分别有50个和77个质荷比处发生谱峰叠加。
The results show that there are 50 and 77 mass charse ratios where the overlap interference of spectrum peaks may occur respectively in surface ionization …
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。
Mass spectra (MS) of cholesterol esters and halides were obtained by means of Electron Impact (EI), Field Desorption (FD) and Chemical Ionization (CI).
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