本文件描述了通过液相色谱-串联质谱（LC-MS/MS）测定食品（谷物、红曲米（RYR））、草药和食品补充剂中桔霉素含量的程序。该方法已在红曲米和配方食品补充剂中的桔霉素（范围为2.5µg/kg至3000µg/kg）和小麦面粉中的桔霉素（范围为2.5µg/kg至100µg/kg）中得到验证。实验室经验表明，该方法也适用于白米、草药，如银杏叶粉和2.5µg/kg至50µg/kg范围内的配方食品补充剂。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document describes a procedure for the determination of the citrinin content in food (cereals, red yeast rice (RYR)), herbs and food supplements by liquid chromatography tandem mass spectrometry (LC-MS/MS).This method has been validated for citrinin in red yeast rice and in the formulated food supplements in the range of 2,5 µg/kg to 3 000 µg/kg and in wheat flour in the range of 2,5 µg/kg to 100 µg/kg.Laboratory experiences have shown that this method is also applicable to white rice, herbs such as a powder ofginkgo bilobaleaves and the formulated food supplements in the range of 2,5 µg/kg to 50 µg/kg.All current amendments available at time of purchase are included with the purchase of this document.