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投稿时间:2014-12-16
投稿时间:2014-12-16
中文摘要: 研究气相色谱-质谱测定畜禽肉中特布他林、克伦特罗、沙丁胺醇和莱克多巴胺的简便、高效、准确的前处理技 术。将绞碎的肉样品用 5 %高氯酸超声波提取,再以 10 000 r/min 离心 15 min 后,上清液用 WCX 固相萃取柱进行富集净 化,衍生化后检测。4 种兴奋剂在 50 μg/L~1 000 μg/L 的范围具有良好线性,相关系数在 0.995 以上, 加标回收率在 84.32 %~ 103.15 %之间,RSD 在 1.35 %~4.78 %之间,表明试验方法准确可靠。
Abstract:A simple and efficient of new pretreatment technology was researched for determination of terbu- taline, clenbuterol, salbutamol, ractopamine in livestock and poultry meat by GC-MS. The minced pork sample was ultrasonically extracted by 5 % perchloric acid and centrifuged at 10 000 r /min for 15 min,then the super- natant w as purified by an WCX cartridge,the eluate was derivatizated and assyed by GC/MS then. The linear range of the method was 50 μg/L-1 000 μg/L with a correlation coefficient of 0.995, The average recovery a- mong 84.32 % and 103.15 %, relative standard deviations(RSD)between 1.35 % and 4.78 %, which indicated the research method was accurate and reliable.
keywords: terbutaline cenbuterol salbutamol ractopamine WCX cartridge
文章编号:201606036 中图分类号: 文献标志码:A
基金项目:浙江省分析测试科技计划项目(2013C37091)
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