电喷雾液相色谱串联质谱法测定人尿中10种邻苯二甲酸单酯

Chinese Journal of Health Laboratory Technology(2017)

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Abstract
目的 建立同时测定人尿中10种邻苯二甲酸单酯的电喷雾高效液相色谱串联质谱法.方法 尿样经β-葡萄糖醛酸酶水解,全自动固相萃取仪净化后,采用高效液相色谱串联质谱电喷雾电离,多反应监测模式检测,同位素内标法定量.结果 本方法在0 μg/L~ 100μg/L时具有良好线性关系,相关系数均≥0.995,检出限在0.003μg/L~0.11 μg/L,回收率为77.6%~ 122.5%,精密度为1.40% ~ 9.27%.结论 本方法灵敏度好,准确度高,适用于实际尿样中多种邻苯二甲酸单酯的测定.
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Key words
High performance liquid chromatography-electrospray ionization-tandem mass spectrometry,Urine,Isotope internal standard method,Phthalate mono-esters,Automated solid phase extraction
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