离子选择电极法测定食品中糖精钠 ,虽然是国标中的第三法 ,但由于所用仪器较廉价 ,操作容易掌握 ,所以在基层防疫站中较常用。本文就离子选择电极法测定含乳饮料糖精钠含量过程中易出现的问题作一些探讨 ,供同行们参考。样品处理中出现的问题　 (1)含乳饮料中 ,因含有蛋白质、 Ion-selective electrode method for the determination of saccharin sodium in food, although it is the third method in the national standard, but due to the cheaper instruments used to operate easy to grasp, so the grass-roots epidemic prevention stations are more commonly used. This article on the ion-selective electrode method for the determination of milk beverage saccharin sodium content in the process of some problems that may arise for colleagues for reference. Problems in sample processing (1) milk-containing beverages, due to contain protein,