建立了一种利用超高效液相色谱-质谱联用同时快速筛查、检测降糖类和减肥类保健品中20种非法添加化学成分的方法.试样用甲醇提取后,经Poroshell 120 EC-C18柱(100mm×2.1 mm,2.7 μm)分离,以5 mmol/L乙酸铵和乙腈为流动相梯度洗脱,采用电喷雾离子源正、负离子模式切换、多反应监测模式检测.20种非法添加化合物的峰面积与质量浓度均呈良好的线性关系,相关系数均大于0.99,回收率均在75.9％ ～ 114.0％范围内,相对标准偏差均不高于11.3％,检出限均在0.3～ 1.5 μg/L范围内.该方法快速、简便、灵敏、重现性好,为打击降糖类和减肥类保健品中非法添加化学降糖药提供了有力的依据.
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