液相色谱-串联质谱测定乳制品中乳酸链球菌素

Yikan LIN,Tao LEI,Zhiyun LU,Beini PANG,Tianyi LIU,Wenfeng DUAN

The Food Industry（2018）

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Abstract

建立液相色谱-串联质谱法用于测定乳酸链球菌素的含量.PLRPS-S为色谱柱.样品经提取净化后,用超高效液相色谱分离后采用电喷雾串联质谱进行定性和定量检测.线性范围为0～1 000 μg/L,线性相关系数r大于0.99,方法检出限为0.2 mg/kg,在加标浓度为0.2～5.0 mg/kg条件下的回收率为89.01％～104.52％,精密度为1.99％～8.77％.方法简单、灵敏、准确、精密,满足检测需求.

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