ION-TRAP AND QUADRUPOLE MASS-SPECTRA OF LIGNIN PYROLYSATES - HOW WELL DO THEY COMPARE

被引：8

作者：

GALLETTI, GC

REEVES, JB

FRANCIS, BA

REEVES, VB

机构：

[1] USDA, RUMINANT NUTR LAB, BELTSVILLE, MD 20705 USA

[2] US FDA, CTR VET MED, BELTSVILLE, MD 20705 USA

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1993年 / 7卷 / 07期

关键词：

D O I：

10.1002/rcm.1290070717

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Lignin samples from wheat straw, orchard grass, red clover and a synthetic lignin were subjected to pyrolysis gas chromatography/mass spectrometry using both quadrupole (QMS) and ion-trap detector (ITD). ITD mass spectra were comparable with those presented in the National Bureau of Standards (NBS) library and with those obtained by QMS as evaluated by discrepancy factors. Computer-assisted library searches for ITD spectra were successful for 22 of 47 compounds. The other 25 compounds were not present in the library. A typical program and mass spectra are shown. Statistical data are discussed.

引用

页码：641 / 645

页数：5

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