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Determination of aluminum content in food by pressure digestion method
Author(s): 
Pages: 88-90
Year: Issue:  5
Journal: Guizhou Science

Keyword:  油条硫酸冒烟铬天青S溴化十六烷基三甲胺;
Abstract: 研究了压力罐消解法测定食品中铝的含量.样品经硝酸、过氧化氢在压力罐内消解,将消解液转移到锥形瓶中,硫酸冒烟赶酸,调节溶液酸度,铬天青S及溴化十六烷基三甲胺反应形成蓝色三元络合物,于640 nm波长处测定吸光度.经实验证明,方法的回收率为95%~107%,RSD小于95%.该方法操作方便、快速、准确,有利于对面制品中铝的监测工作的推广.
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