A comparison of various pyrolysis experiments for the analysis of reference humic substances

被引：4

作者：

Davies, AN ^{[1
]}

Kuckuk, R ^{[1
]}

Hill, W ^{[1
]}

Nolte, J ^{[1
]}

Burba, P ^{[1
]}

机构：

[1] ISAS, D-44139 Dortmund, Germany

来源：

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2001年 / 60卷 / 02期

关键词：

D O I：

10.1016/S0165-2370(00)00166-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The interpretation of the results of pyrolysis studies of humic substances is fraught with difficulties if only a single analytical technique is employed for substructure analyses. In this paper we have carried out investigations into humic substances utilising the additional information from the combination of gas chromatography/infrared spectroscopy and gas chromatography/mass spectrometry detection following Curie-point pyrolysis at five different temperatures. The results were compared to those obtained from conventional flash pyrolysis. The aim was to ensure the validation of the results of the compounds identified by at least one other spectroscopic technique. Some 30 substances have been positively identified by infrared spectroscopy, although their appearance is dependent on pyrolysis method and temperature. Most assignments were validated by mass spectrometry or the substance class confirmed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：145 / 157

页数：13

共 11 条

[1] COMPARISON OF METHODS USED FOR THE RECONSTRUCTION OF GC-FT-IR CHROMATOGRAMS [J].