摘要
目的建立X射线荧光光谱法测定面粉、糖果、果冻、鱼丸等食品中二氧化钛的快速检测方法。方法针对不同的食品形态,分别探究干燥后粉碎、加入稀释剂粉碎、均质、加稀释剂均质4种制样模式,选定引入稀释剂改善制样均匀性,应用内标元素Nd校正基体和水分散失带来的影响。结果建立的二氧化钛快速检测方法线性良好,适用于市面上各种食品。应用本法对市面上可能含有二氧化钛的面粉、糖果、蜜饯、果冻、鱼丸样品各10份进行筛查,发现除一份鱼丸超范围使用食品添加剂二氧化钛外,其余39份食品二氧化钛均满足国家标准要求。结论本方法操作简单,分析速度快,适合批量食品中二氧化钛的快速检测。
Objective To establish a rapid determination method of titanium dioxide in flour,candy,jelly,fish ball and other food by X-ray fluorescence spectrum.Methods According to different food,four sample pretreatments were tried,grinding after drying,grinding with diluent,homogenizing and homogenizing with diluent.Finally,diluent was selected to improve the uniformity of sample preparation,and internal standard element Nd was used to correct the influence of matrix and water loss.Results The established rapid detection method of titanium dioxide had good linearity and was suitable for all kinds of food in the market.This method was used to screening 10 copies of each sample including titanium dioxide inflour,candy,candied fruit,jelly and fish ball.The results of the screening was that a fish ball was found using titanium dioxide as a food additive,and the remaining 39 samples of food titanium dioxide all met the requirements of national standards.Conclusion This method is simple,rapid and suitable for the rapid detection of titaniumin bulk food.
作者
周陶鸿
宋政
胡家勇
姚晓帆
黄徽
ZHOU Tao-Hong;SONG Zheng;HU Jia-Yong;YAO Xiao-Fan;HUANG Hui(Hubei Provincial Institute for Food Supervision and Testt Wuhan 430075,China;Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test,Wuhan 430075,China)
出处
《食品安全质量检测学报》
CAS
北大核心
2021年第1期50-55,共6页
Journal of Food Safety and Quality
基金
国家市场监督管理总局科技计划项目(2020MK068)。
关键词
X射线荧光光谱
二氧化钛
快速检测方法
X ray fluorescence spectrum
titanium dioxide
rapid detection method
