کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1211693 | 1493778 | 2006 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Size-exclusion chromatography of technical lignins in dimethyl sulfoxide/water and dimethylacetamide
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Well defined spent sulfite liquor samples and lignosulfonate fractions obtained by ultrafiltration were analyzed using size-exclusion chromatography. Two different eluent systems (dimethyl sulfoxide/water/lithium bromide; dimethylacetamide/lithium chloride) were compared regarding their suitability for lignin analysis. The differences of the elution profiles and calculated molar masses were discussed using conventional and universal calibration. For further validation four technical lignins from a Round Robin test were included into the study. The results indicated that both analytical systems under investigation were well suited for the analysis of technical lignins.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1102, Issues 1–2, 13 January 2006, Pages 154–163
Journal: Journal of Chromatography A - Volume 1102, Issues 1–2, 13 January 2006, Pages 154–163
نویسندگان
Okko Ringena, Sascha Lebioda, Ralph Lehnen, Bodo Saake,