通过解吸化学电离质谱法测定细菌共聚酯中β-羟基链烷酸酯单元的序列分布

Sequence distribution of beta-hydroxyalkanoate units in bacterial copolyesters determined by desorption chemical ionization mass spectrometry.

作者信息

Abate R, Garozzo D, Rapisardi R, Ballistreri A, Montaudo G

机构信息

Istituto per la Chimica e la Tecnologia dei Materiali Polimerici, Consiglio Nazionale delle Ricerche, Catania, Italy.

出版信息

Rapid Commun Mass Spectrom. 1992 Nov;6(11):702-6. doi: 10.1002/rcm.1290061114.

DOI:10.1002/rcm.1290061114

Abstract

The sequence distributions of poly(beta-hydroxyalkanoate) copolymers were determined by analyzing oligomers obtained by the pyrolysis direct-chemical-ionization (DCI) mass spectrometry technique. Oligomers up to nonamers were identified and the comparison between the experimental and calculated peak intensities makes it possible to calculate repeating unit compositions and sequence distributions. Comparisons with other earlier methods are given.

摘要

通过分析热解直接化学电离（DCI）质谱技术获得的低聚物，确定了聚（β-羟基链烷酸酯）共聚物的序列分布。鉴定出了直至九聚体的低聚物，并且通过实验峰强度与计算峰强度之间的比较，可以计算重复单元组成和序列分布。还给出了与其他早期方法的比较。

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