کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9748172 | 1492990 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison between off-line and on-line derivatisation methods in the characterisation of siccative oils in paint media
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
The characterisation of siccative oils (drying oils used in paint media) by gas-chromatography/mass-spectrometry using three derivatisation methods has been investigated and the differences in results discussed. The classic off-line derivatisation method with (trimethyl)silyldiazomethane has been compared with two alternative methods. The first involves on-line derivatisation using tetramethylammoniun hydroxide; in this case the reaction is performed in a pyrolysis interface at 600 °C. The second uses (m-trifluoromethylphenyl)trimethylammonium hydroxide as a derivatisation reagent (lower temperature required for methylation reaction without using the pyrolysis interface). The three methodologies have been found to give reproducible and comparable results for the different types of fresh and aged oils investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Analytical and Applied Pyrolysis - Volume 74, Issues 1â2, August 2005, Pages 33-38
Journal: Journal of Analytical and Applied Pyrolysis - Volume 74, Issues 1â2, August 2005, Pages 33-38
نویسندگان
Anna Piccirillo, Dominique Scalarone, Oscar Chiantore,