LASER DESORPTION FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE MASS-SPECTROMETRY OF POLYMER ADDITIVES

被引：37

作者：

ASAMOTO, B

YOUNG, JR

CITERIN, RJ

机构：

[1] BP Research, Warrensville Research Center, Cleveland, Ohio, 44128-2837

来源：

ANALYTICAL CHEMISTRY | 1990年 / 62卷 / 01期

关键词：

D O I：

10.1021/ac00200a012

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Laser desorption/Fourier transform ion cyclotron resonance mass spectrometry is found to be a viable method for Identifying polymer additives in polyethylene extracts. Reference spectra were obtained for 18 antioxidants, 7 UV absorbers, and 4 amide waxes. The spectra were found to contain Intense quasimolecular Ions (Na+ and K+ adducts) and also structurally Informative fragments, depending on conditions used. The molecular weights of several additives in the diethyl ether extracts of three commercial polyethylenes were determined by using the characteristic Na+/K+ adduct pairs observed in the laser desorption spectra. Two additives were Identified as phenolic antioxidants. © 1990, American Chemical Society. All rights reserved.

引用

页码：61 / 70

页数：10

共 21 条

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