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

A. N. Davies; Rüdiger Kuckuk; Wieland Hill; J. Nolte; P. Burba

doi:10.1016/S0165-2370(00)00166-2

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

A. N. Davies, Rüdiger Kuckuk, Wieland Hill, J. Nolte, P. Burba

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Abstract

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.

Original language	English
Pages (from-to)	145-157
Number of pages	13
Journal	Journal of Analytical and Applied Pyrolysis
Volume	60
Issue number	2
DOIs	https://doi.org/10.1016/S0165-2370(00)00166-2
Publication status	Published - 2001
Externally published	Yes

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title = "A comparison of various pyrolysis experiments for the analysis of reference humic substances",

abstract = "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.",

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AU - Davies, A. N.

AU - Kuckuk, Rüdiger

AU - Hill, Wieland

AU - Nolte, J.

AU - Burba, P.

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

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DO - 10.1016/S0165-2370(00)00166-2

M3 - Article

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SN - 0165-2370

VL - 60

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EP - 157

JO - Journal of Analytical and Applied Pyrolysis

JF - Journal of Analytical and Applied Pyrolysis

IS - 2

ER -

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

Abstract

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