کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10550002 | 966898 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Molecularly imprinted solid-phase extraction for the selective determination of valnemulin in feeds with high performance liquid chromatography
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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: Molecularly imprinted solid-phase extraction for the selective determination of valnemulin in feeds with high performance liquid chromatography Molecularly imprinted solid-phase extraction for the selective determination of valnemulin in feeds with high performance liquid chromatography](/preview/png/10550002.png)
چکیده انگلیسی
A simple, sensitive and reproducible high performance liquid chromatographic method was developed for determining valnemulin in feeds. Feed samples were extracted with ethyl acetate under alkaline condition, cleaned up by molecularly imprinted solid-phase extraction, and analyzed by high performance liquid chromatography with ultraviolet detection. The characteristics of the synthesized polymer were evaluated and the loading capacity of the polymer was about 1000 μg analyte/g imprinted polymer. The new procedure for the feed sample cleanup using the prepared polymer cartridge gave higher recoveries and fewer matrix interferences. The assay exhibited a linear dynamic range of 5.0-200 mg kgâ1 with the correlation coefficient above 0.9993. Recoveries of valnemulin from feed samples spiked at 5.0, 20 and 50 mg kgâ1 ranged between 76.0% and 94.4% with relative standard deviations of less than 9%. The limit of detection for valnemulin in feeds was 1 mg kgâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography B - Volume 879, Issue 2, 15 January 2011, Pages 181-185
Journal: Journal of Chromatography B - Volume 879, Issue 2, 15 January 2011, Pages 181-185
نویسندگان
Hongbin Guo, Kaiyong Liu, Yahong Liu, Binghu Fang, Min Liu, Limin He, Zhenling Zeng,