کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10554099 | 967951 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analysis of rhubarb anthraquinones and bianthrones by microemulsion electrokinetic chromatography
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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![عکس صفحه اول مقاله: Analysis of rhubarb anthraquinones and bianthrones by microemulsion electrokinetic chromatography Analysis of rhubarb anthraquinones and bianthrones by microemulsion electrokinetic chromatography](/preview/png/10554099.png)
چکیده انگلیسی
In this work a method of microemulsion electrokinetic chromatography (MEEKC) has been developed for the analysis of nine anthraquinones and bianthrones in rhubarb. This study employed di-n-butyl tartrate as oil substance to make up the microemulsion. The composition of the microemulsion was 0.5% (w/w) di-n-butyl tartrate, 0.6% (w/w) SDS, 1.2% (w/w) 1-butanol and 97.7% (w/w) 10Â mM sodium borate buffer, pH of the buffer being 9.2. Acetonitrile was added to the emulsion to improve the separation. The volume ratio between the emulsion solution and acetonitrile of an optimized separation was 70:30. With the optimized conditions all of the nine analytes were baseline-separated in peaks of good shapes within 20Â min. After validation the method was used to analyze the components in a rhubarb sample. A solid-phase extraction procedure was employed. Five anthraquinones and two bianthrones had been detected in the sample and their amounts were determined. The method should be able to be used for the quantitative analysis of the main active components of rhubarb crude drugs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical and Biomedical Analysis - Volume 36, Issue 5, 4 January 2005, Pages 995-1001
Journal: Journal of Pharmaceutical and Biomedical Analysis - Volume 36, Issue 5, 4 January 2005, Pages 995-1001
نویسندگان
Shao-Wen Sun, Pei-Chen Yeh,