کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1216023 | 1494189 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification of conjugated linoleic acid elongation and β-oxidation products by coupled silver-ion HPLC APPI-MS
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Identification of conjugated linoleic acid elongation and β-oxidation products by coupled silver-ion HPLC APPI-MS Identification of conjugated linoleic acid elongation and β-oxidation products by coupled silver-ion HPLC APPI-MS](/preview/png/1216023.png)
چکیده انگلیسی
Atmospheric pressure photoionisation (APPI) was used in combination with silver-ion (Ag+)-HPLC for detection of (conjugated) fatty acid methyl esters (FAME) by tandem-mass spectrometry. APPI-MS of methyl esters of conjugated linoleic acid showed an increase in signal-to-noise ratio by a factor of 40 compared to atmospheric pressure chemical ionization in the positive mode. It was possible to identify double bond position, configuration and chain length of FAME based on chromatographic separation and mass detection. The developed LC–MS method is useful for the analysis of CLA elongation and β-oxidation products, especially with trans,trans-configuration, which are difficult to analyze by conventional GC–MS techniques.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography B - Volume 837, Issues 1–2, 6 June 2006, Pages 147–152
Journal: Journal of Chromatography B - Volume 837, Issues 1–2, 6 June 2006, Pages 147–152
نویسندگان
André Müller, Markus Mickel, Roland Geyer, Robert Ringseis, Klaus Eder, Hans Steinhart,