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高效液相色谱串联质谱法快速测定玉米中伏马毒素

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摘要 建立了快速测定玉米中伏马毒素B1和伏马毒素B2的高效液相色谱串联质谱法。样品用甲醇溶液(3:1v/v)超声提取,离心和过滤膜后直接进行仪器分析。采用Zorbax Eclipse XDB—C18进行分离,以V(甲醇):V(水)=75:25为流动相进行HPLC-MS/MS分析,基质校准外标法定量。方法的线性范围为3-200ug/kg,FB1和FB2的检出限分别为3.5ug/kg和2.5ug/kg,定量限分别为11.7ug/kg和8.3ug/kg。在.25、500、1000和1500ug/kg4个浓度水平进行添加实验,平均回收率为,87.7%-94.6%,批内相对标准偏差为3.08%~7.04%,批间相对标准偏差为5.28%~9.25%。
出处 《宁波农业科技》 2010年第1期2-4,共3页 Ningbo Agricultural Science and Technology
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