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论文编号:SP073 论文字数:9506,页数:23
摘 要:本论文研究的目的在于建立一种用高效液相色谱分析技术(HPLC)测定饲料中的甲基睾丸酮含量。用95%甲醇水溶液来提取饲料中的甲基睾丸酮,取部分提取清液过中性氧化铝柱净化;高效液相系统采用C18分离柱,流动相为甲醇:水(75:25 V/V),紫外检测波长为254nm。该方法的线性范围为0.05~5.0μg/mL,线性回归方程为y=52.546x+0.7753,相关系数:r=0.9998。对饲料中甲基睾丸酮的定性检测限为1mg/kg,定量检测限为2mg/Kg,当添加浓度范围为2 mg/Kg~20 mg/Kg时,回收率为86.5%~108.8%,相对标准偏差小于4%。本方法操作简单快捷,分离效果较好,是一种饲料中甲基睾丸酮残留检测的准确、高效的分析方法。
关键词:高效液相色谱分析;甲基睾丸酮;饲料
Abstract: The aim of this paper is to establish a high-performance liquid chromatography analysis techniques (HPLC) of the feed-methyl-testosterone levels. With 95 percent methanol-water solution to extract the feed-methyl-testosterone, some extracts from a neutral alumina Qingye-purification; HPLC system uses C18 column, a mobile phase of methanol: water (75:25 V / V), UV detection at 254 nm. The method of the range of 0.05 ~ 5.0 μ g / mL, linear regression equation y = 52.546x +0.7753, the correlation coefficient: r = 0.9998. To feed methyl-testosterone qualitative detection limit of 1 mg / kg, quantitative detection limit of 2 mg/Kg, when added to the concentration of 2 mg / Kg ~ 20 mg / Kg, the recovery rate was 86.5 percent to 108.8 percent. The method is simple and quick, from better-performing, is a feed-methyl-testosterone accurate detection of residues, and efficient analysis methods.
Keywords:HPLC; 17-Methyltestosterone;feed
目 录
中文摘要 I
英文摘要 II
目录 III
1. 绪论 1
1.1 前言 1
1.2 甲基睾丸酮检测技术的国内外发展现状 2
2. 实验部分 6
2.1 试剂材料 6
2.2 仪器设备 6
2.3 色谱条件 6
2.4 实验步骤 6
3. 结果与讨论 8
3.1 样品前处理条件的选择 8
3.2 色谱条件的选择 9
3.3 方法的精密度和准确度 12
3.4 线性范围 12
3.5 方法的定性和定量检测限 16
3.6 样品测定结果 16
4.总结与展望 16
致谢 17
参考文献 18