摘要
参照国家标准GB 5009.42—2016使用硫酸亚铁法测定食用盐中亚铁氰化钾含量会出现检测结果远高于样品实际水平的情况,对此,本研究在样品处理环节加入了使用微孔滤膜对样品溶液进行过滤的步骤,提高了食盐中亚铁氰化钾含量测定的准确度,完善了国标方法。
Referring to the national standard GB 5009.42—2016 using the ferrous sulfate method to determine the potassium ferricyanide content in edible salt will appear that the detection results are much higher than the actual level of the sample,in this regard,the present study added the step of filtering the sample solution using microporous filtration membranes in the sample processing link,which improves the accuracy of the determination of the potassium ferricyanide content in edible salt,and perfects the method of the national standard was improved.
作者
宋悦
同瑞婷
任怡
石旭东
张念喆
SONG Yue;TONG Ruiting;REN Yi;SHI Xudong;ZHANG Nianzhe(Shaanxi Product Quality Supervision and Inspection Research Institute,Xi’an 710048,China)
出处
《现代食品》
2023年第23期137-139,共3页
Modern Food
关键词
食盐
亚铁氰化钾
硫酸亚铁
edible salt
potassium ferrocyanide
ferrous sulfate
