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猪肉和猪肾脏中三聚氰胺的HPLC快速检测 被引量:1

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摘要 建立高效液相色谱(HPLC)检测猪肉和猪肾脏中三聚氰胺,样品经三氯乙酸-乙腈(3∶1,V/V)提取,利用阳离子交换固相萃取柱净化后,洗脱液于50℃下用氮气吹干,残渣用离子对试剂缓冲液-乙腈(90∶10,V/V)溶解,用高效液相色谱法由紫外检测器检测、外标法定量。结果表明,三聚氰胺在0.2~80μg/mL浓度范围内具有良好的线性关系,线性相关系数(r2)为0.999 9,其检出限为0.05 mg/kg。在猪肉样品中,三聚氰胺的平均回收率为85.68%~87.18%,相对标准偏差为1.24%~1.84%;在猪肾脏样品中,三聚氰胺的平均回收率为84.69%~87.23%,相对标准偏差为1.25%~2.48%。试验方法具有操作快捷、灵敏度高、重现性好等优点。
出处 《江苏农业科学》 CSCD 北大核心 2011年第3期405-407,共3页 Jiangsu Agricultural Sciences
基金 教育部留学回国人员科研启动基金[编号:教外司留(2009)1001号]
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