建立了高效液相色谱-串联质谱(HPLC-MS/MS)同时测定保健食品中23种违禁精神药品的检测方法.样品经甲醇超声振荡提取20 min,于12 000 r/min下离心后进行HPLC-MS/MS分析检测.采用Agilent Eclipse Plus C18柱分离,流动相A为10 mmol/L甲酸铵溶液,流动相B为乙腈-甲醇(1∶1,v/v)溶液,梯度洗脱;采用电喷雾离子源、正负离子模式切换、多反应监测(MRM)模式检测.23种精神药品在线性范围内线性关系良好,相关系数(R2)均大于0.990;检出限在0.02~1.0μg/L之间;3个添加水平的回收率为82.3% ~ 114.8%,相对标准偏差(RSD)在1.3%~13.7%之间.样品筛查结果发现13种保健品中有1种样品非法添加了安宁,1种样品添加了奥沙西泮,2种样品添加了扎来普隆.该方法选择性强、灵敏度高、处理方法简单,可用于保健品中违禁镇静安神类化学药品的测定.
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