摘要
本文采用灰化法和湿法硝解对奶粉进行处理 ,用火焰原子吸收法分别测定了其中的钙、镁、铜、铁等金属元素含量。并对两种处理方法的结果进行比较 ,结果表明 :干灰化法较省时 ,方便 ,但有较大的偏差 ,湿法硝解虽花时长 。
In the paper,the milk powder sample is treated with mixture of HNO 3 and HClO 4(wet method)or treated with heat to ashes(dry method).A FAAS determination its content of Ca Mg Cu and Fe in the milk powder sample is reported.The results of two methods is also contrasted and analysed.The wet method is more accurate but wastes more time.The dry method is convenient but has more error.
