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Quantitative pyrolysis—gas chromatography—mass spectrometry and pyrolysis—mass spectrometry of chlorolignosulphonic acids

✍ Scribed by Willem M.G.M. van Loon; Jaap J. Boon


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
950 KB
Volume
13
Category
Article
ISSN
0165-9936

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Pyrolysis/gas chromatography/mass spectr
✍ M. Nali; V. Calemma; L. Montanari 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 501 KB

Two n-heptane-precipitated asphaltene samples, characterized by elemental analysis and nuclear magnetic resonance spectrometry, were fractionated according to relative molecular size by gel permeation chromatography (CPC). Both the whole asphaltene samples and their fractions were analysed by pyroly