通过电子电离和负离子化学电离质谱法进行氨基酸序列分析的比较。
Comparison of amino acid sequence analysis by electron ionization and negative-ion chemical ionization mass spectrometry.
作者信息
Reinhard H, Lauber R, Schlunegger U P
机构信息
Institute of Organic Chemistry, University of Bern, Switzerland.
出版信息
Rapid Commun Mass Spectrom. 1989 Apr;3(4):95-9. doi: 10.1002/rcm.1290030402.
PMID:2520233
Abstract
The positive electron ionization and negative chemical ionization mass spectra of 15 different derivatives of the tripeptide Phe-Ala-Leu have been compared. Total ion currents and ion currents of sequence-characterizing ions have been measured and compared. The negative-ion spectra, using 10% carbon dioxide in argon as moderator gas, proved to be simpler and contained more abundant sequence ions than the positive electron ionization spectra.
摘要
对三肽Phe-Ala-Leu的15种不同衍生物的正电子电离质谱和负化学电离质谱进行了比较。测量并比较了总离子流和序列特征离子的离子流。结果表明，以氩气中10%的二氧化碳作为缓和气体的负离子谱比正电子电离谱更简单，且包含更丰富的序列离子。
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