1991
DOI: 10.1016/0165-2370(91)80059-h
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The scope of pyrolysis methylation reactions

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Cited by 146 publications
(44 citation statements)
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“…However, a major drawback of conventional pyrolysis techniques is the occurrence of secondary reactions, such as the recombination of pyrolysis products, decarboxylation and dehydration (Challinor, 2001). The addition of TMAH enables the avoidance of these secondary reactions and generally provides a greater sensitivity than conventional pyrolysis (Challinor, 1991(Challinor, , 2001. THM also enables the analysis of polymeric or macromolecular substances that are resistant to hydrolysis.…”
Section: Advantages Of Thm Over Conventional Pyrolysismentioning
confidence: 99%
“…However, a major drawback of conventional pyrolysis techniques is the occurrence of secondary reactions, such as the recombination of pyrolysis products, decarboxylation and dehydration (Challinor, 2001). The addition of TMAH enables the avoidance of these secondary reactions and generally provides a greater sensitivity than conventional pyrolysis (Challinor, 1991(Challinor, , 2001. THM also enables the analysis of polymeric or macromolecular substances that are resistant to hydrolysis.…”
Section: Advantages Of Thm Over Conventional Pyrolysismentioning
confidence: 99%
“…Whereas for the former, good information could be gained by a variety of techniques (colorimetric assays, 2 infrared spectroscopy, 3 acid hydrolysis followed by chromatography 4,5 ), for the latter, the detection and identification of specific resins in paint media was not possible before the use of high-resolution gas chromatography, 6,7 Fourier-transform infrared spectroscopy and gas chromatography/mass spectrometry. 9 More recently, new techniques such as pyrolysis/gas chromatography, 10 pyrolysis/gas chromatography/mass spectrometry, 11,12 ion-source pyrolysis/mass spectrometry 13 and simultaneous pyrolysis-methylation/gas chromatography/mass spectrometry 14 have afforded unequivocal assignments to the resin composition of art materials, and have also improved the information obtainable from carbohydrate-based media, 15 revealing the possibility of obtaining characteristic fingerprints for the different materials.…”
Section: Gummentioning
confidence: 99%
“…The pyrolysis of polar macromolecular materials is known to produce volatile polar products, only some of which can be chromatographed; polar products remain attached to the column, undetected and unquantified. Pyrolysis in the presence of TMAH derivatizes polar compounds to become less polar products, which are more amenable to chromatographic separation (Challinor, 1989;del R! ıo et al, 1996).…”
Section: Introductionmentioning
confidence: 99%