THE LASER DESORPTION LASER IONIZATION MASS-SPECTRA OF SOME METHYLATED XANTHINES AND THE LASER DESORPTION OF CAFFEINE AND THEOPHYLLINE FROM THIN-LAYER CHROMATOGRAPHY PLATES

被引：18

作者：

ROGERS, K ^{[1
]}

MILNES, J ^{[1
]}

GORMALLY, J ^{[1
]}

机构：

[1] UNIV SALFORD,DEPT CHEM & APPL CHEM,SALFORD M5 4WT,LANCS,ENGLAND

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1993年 / 123卷 / 02期

关键词：

LASER DESORPTION; LASER IONIZATION; THIN LAYER CHROMATOGRAPHY; CAFFEINE; TIME OF FLIGHT;

D O I：

10.1016/0168-1176(93)87006-E

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Laser desorption/laser ionization time-of-flight mass spectra of caffeine, theophylline, theobromine and xanthine are reported. These mass spectra are compared with published spectra obtained using electron impact ionization. Mass spectra of caffeine and theophylline obtained by IR laser desorption from thin layer chromatography plates are also described. The laser desorption/of materials from thin layer chromatography plates is discussed.

引用

页码：125 / 131

页数：7

共 12 条

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