Analysis of free amino acids in Amur sturgeon by ultra-performance liquid chromatography using pre-column derivatization with 6-aminoquinolyl-carbamyl
文献类型： 外文期刊
作者： Sun, Yanchun 1 ; Xu, Xianzhu 1 ; Mou, Zhenbo 2 ; Wang, Jing 3 ; Tan, Zhijun 4 ; Wu, Song 2 ;
作者机构： 1.Harbin Inst Technol, Coll Sci, Harbin 150001, Peoples R China
2.Chinese Acad Fishery Sci, Heilongjiang River Res Inst, Harbin, Peoples R China
3.Hosp Harbin Univ Sci & Technol, Harbin, Peoples R China
4.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao, Peoples R China
关键词： 6-aminoquinolyl-carbamyl;Amino acid analysis;Amur sturgeon;Free amino acids;Ultra-performance liquid chromatography
期刊名称：JOURNAL OF SEPARATION SCIENCE （ 影响因子：3.645； 五年影响因子：2.943 ）
ISSN：
年卷期：
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收录情况： SCI
摘要： A rapid, sensitive, and reliable ultra-performance liquid chromatography (UPLC) coupled with photodiode array detection method was developed for the amino acid analysis of Amur sturgeon (Acipenser schrenckii Brandt). The method uses minimal sample volume and automated online precolumn derivitization of amino acids with fluorescent 6-aminoquinolyl-carbamyl reagent. The chromatographic separation was achieved by UPLC, which used a column with 1.7 μm particle packing that enabled higher speed of analysis, peak capacity, greater resolution, and increased sensitivity. Amino acid derivatives obtained under optimal conditions were separated on a Waters UPLC BEH C_(18) column with Acetonitrile-acetate buffer as mobile phase. Matrix effects were investigated and good linearities with correlation coefficients better than 0.9949 were obtained over a wide range of 5-1000 μmol/L for all amino acids. The simple sample preparation and minimal sample volume make the method useful for the quantitation of 17 amino acids in Amur sturgeon samples. It is concluded that a rapid and robust platform based on UPLC was established, and a total of 17 amino acids of Amur sturgeon were tentatively detected. This method showed good accuracy and repeatability that can be used for the quantification of amino acids in real samples.
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