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投稿时间:2017-04-11
投稿时间:2017-04-11
中文摘要: 建立一种快速、高效的固相萃取-高效液相色谱法检测烹饪食物中丙烯酰胺含量的分析方法,研究食物在烹饪过程中丙烯酰胺含量变化的规律。样品经5 mol/L NaCl溶液提取后,采用HLB固相萃取小柱进行净化和富集。以体积比20%的乙腈溶液作为流动相,200 nm的检测波长下检测,外标法峰面积定量。结果表明,丙烯酰胺标准溶液在0.05 μg/mL~5.00 μg/mL 浓度范围内线性良好,相关系数 R2为 0.999,检出限为 4.5 μg/kg,定量限为 15.0 μg/kg,加标回收率达到96.2%~98.5%,相对标准偏差(RSD)为1.8%~3.2%。
Abstract:A rapid and effective method was established for the determination of acrylamide in cooking food by high performance liquid chromatography (HPLC),and the changes of acrylamide content during the cooking process.After extracted by 5 mol/L NaCl solution,the sample was concentrated and purified by HLB solid phase extraction column.The separation of targeted use acetonitrile solution with volume ratio of 20%as mobile phase,with 200 nm as the detection wavelength and the peak area was quantified by external standard method.The linear range of acrylamide was in the range of 0.05 μg/mL-5.00 μg/mL with a correlation coefficient of 0.999.The detection limit was 4.5 μg/kg and the quantitative limit was 15.0 μg/kg.The recovery rate was 96.2%-98.5%,and the relative standard deviation(RSD)ranged from 1.8%to 3.2%.
文章编号:201719029 中图分类号: 文献标志码:A
基金项目:
作者 | 单位 |
李河山 | 桂林理工大学,广西桂林541000 |
Author Name | Affiliation |
LI He-shan | Guilin University of Technology,Guilin 541000,Guangxi,China |
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