摘要
研究利用等离子体原子发射光谱同时测定硅藻土中硅、铝、铁、钙、镁五种元素的方法。样品经微波消解前处理后,用ICP测定,结果再换算成氧化物。结果显示：5种元素的线性好,相关系数均（r）为0.999以上;精密度（RSD）小于2%;回收率在96%~106%之间。该方法稳定可靠、操作简单、试剂消耗量小。
A method for the simultaneous determination of diatomite in silicon,aluminum,iron,calcium and magnesium was studied by plasma atomic emission spectroscopy method. The samples were pre-treated with microwave digestion with ICP determination and resulted in terms of oxide. The results showed that 5 elements had a good linear correlation coefficient（ r） of 0. 999 or more,precision（ RSD） was less than 2%,recoveries were between 96% and106%. The method is stable and reliable,simple operation,small reagent consumption.
出处
《广州化工》
CAS
2015年第20期132-133,149,共3页
GuangZhou Chemical Industry
关键词
硅藻土
微波消解
等离子体原子发射光谱法
diatomaceous earth
microwave digestion
plasma atomic emission spectrometry
