HIGH MASS MATERIAL (GREATER-THAN-10(4) DALTONS) IN A COAL-LIQUEFACTION EXTRACT, BY LASER-DESORPTION MASS-SPECTROMETRY

被引：32

作者：

JOHN, P

JOHNSON, CAF

PARKER, JE

SMITH, GP

HEROD, AA

GAINES, AF

LI, CZ

KANDIYOTI, R

机构：

[1] HERIOT WATT UNIV,DEPT CHEM,EDINBURGH EH14 4AS,MIDLOTHIAN,SCOTLAND

[2] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT CHEM ENGN,LONDON SW7 2AZ,ENGLAND

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1991年 / 5卷 / 08期

关键词：

D O I：

10.1002/rcm.1290050807

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The use of a laser-desorption mass spectrometer to examine a coal liquefaction extract known to contain high-molecular-mass material (from size-exclusion chromatography) has shown the presence of components of molecular mass in excess of 10(4)Da for the first time. The molecules detected differ from each other in molecular mass by a few hundred or a few thousand Da. These preliminary results indicate that the basic coal-structure molecules probably consist of aromatic clusters on a chain, in reasonable agreement with current theories of coal structure.

引用

页码：364 / 367

页数：4

共 8 条

[1]

GIBBINS JR, 1990, FUEL PROCESSING TECH, P237

[2] LASER-INDUCED MOLECULAR ION FORMATION AND GAS-PHASE ION FORMATION FROM POLYCYCLIC AROMATIC-HYDROCARBONS, COALS AND COAL PRODUCTS DETECTED BY FOURIER-TRANSFORM MASS-SPECTROMETRY [J].