TIME-RESOLVED PYROLYSIS FIELD-IONIZATION MASS-SPECTROMETRY OF HUMIC MATERIAL ISOLATED FROM FRESH-WATER

被引：45

作者：

SCHULTEN, HR

ABBTBRAUN, G

FRIMMEL, FH

机构：

[1] TECH UNIV MUNCHEN,INST WASSERCHEM & CHEM BALNEOL,D-8000 MUNCHEN 70,FED REP GER

[2] FACH SCH FRESENIUS,DEPT TRACE ANAL,D-6200 WIESBADEN,FED REP GER

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1987年 / 21卷 / 04期

关键词：

CHEMICAL REACTIONS - Pyrolysis - ENVIRONMENTAL TESTING - IONIZATION - MASS SPECTROMETERS - WATER ANALYSIS;

D O I：

10.1021/es00158a003

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The thermal degradation of aquatic humics in combination with mass spectrometric analyses using field ionization (FI) as a soft ionization method is reported. A general characterization of the Py products of humics and the ratios of volatilized matter and residual char are given. These methods permit insight into the thermal degradation processes of complex polymeric biomatter. In contrast to the humic acid (HA) investigated, for fulvic acid (FA) a larger amount of pyrolysates is formed, indicating less thermal stability. Chemical reactions such as alternating methylation and oxidation steps of FA lead to characteristically different results.

引用

页码：349 / 357

页数：9

共 32 条

[1] PYROLYSIS FIELD-IONIZATION MASS-SPECTROMETRY OF CELL-WALL COMPONENTS AND BACTERIAL-CELL WALLS [J].