羊肉中环境雌激素的气相色谱-质谱测定法
Journal of Environment and Health(2009)
Abstract
目的 建立羊肉中环境雌激素(4-壬基酚、双酚A、己烯雌酚、17α-乙炔基雌二醇、17α-雌二醇、17β-雌二醇、雌三醇、雌酮)的气相色谱-质谱(GC-MS)测定法.方法 肉样经乙腈-乙酸乙酯(体积比为3:2)混合溶液提取后用同相萃取柱净化.被测组分经五氟丙酸酐(PFPA)衍生后用GC-MS进行检测.结果 8种环境雌激素在0.2~5.0μg/kg内呈良好的线性关系,相关系数为0.997 4~0.999 7,该法测定的峰面积的日内相对标准偏差为1.25%~5.85%,检出限为0.024~1.40μg/kg.回收率除17α-乙炔基雌二醇较低(55.4%)外,其他为71.5%~111.0%.结论 该方法 准确、灵敏,精密度好,适于羊肉中环境雌激素的测定.
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Key words
mutton,gas ghromatography-mass spectrometry,milk,environmental estrogens,gas chromatography-mass spectrometry,gas chromatography,food contamination,mass spectrometry,gc ms
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