原子吸收分光光谱法测定磷矿石中的氧化铁

Determination of Iron Oxide of Phosphate Rock for Atoms Absorption Spectrometry

建立了测定磷矿石中氧化铁的原子吸收分光光谱法,样品的相对标准偏差为3.75%,回收率在97.1%~102.1%之间、对氧化铁的检出限为3.2μg/L;与《磷矿石和磷精矿中氧化铁的测定》国家标准检测结果相对误差最高为3.77%,本法相对《磷矿石和磷精矿中氧化铁的测定》国家标准测定方法而言操作简便、快速、准确度高。

Establishing atoms absorption spectrometry for iron oxide of phosphate rock,the relative standard deviation of the sample was 3. 75%,recoveries between 97. 1% to 102. 1%,and the detection limit of magnesium is 3. 2μg / L. Its relative error of up is 3. 77% withnational National standards test results ,relatively phosphate rock and concentrate -determination of iron oxide content national standard measurement method,this method is simple,rapid,and high accuracy.