乳业科学与技术2012，Vol.35Issue(6)：21-22,2.
乳制品中二氧化硅抗结剂的测定研究
Determination of Silica Dioxide as Anti-Caking Agent in Milk Power
摘要
Abstract
A method was proposed to determine silica dioxide, an anti-caking agent, in milk powder. After high temperature ashing, samples were dissolved in acid to remove soluble salts and other substances. The precipitate (silica dioxide and insoluble solids) was burned at a high temperature to a constant weight and treated with hydrofluoric acid to remove silica dioxide. Finally, the remaining residue was collected and burned again to a constant weight. As a result, this weight loss was silica dioxide. The limit of detection and limit of quantification of this method were 0.4 g/kg and 2.0 g/kg, respectively. Average recovery rates of silica dioxide in spiked blank samples ranged from 91% to 112%. This method was simple, rapid effective, and applicable for the determination of silica dioxide in milk powder关键词
乳制品/抗结剂/二氧化硅/测定Key words
milk powder/anti-caking agent/silica dioxide分类
化学化工引用本文复制引用
陈刚..乳制品中二氧化硅抗结剂的测定研究[J].乳业科学与技术,2012,35(6):21-22,2.基金项目
南通市科技计划项目 （）
