摘要
氢氟酸 -高氯酸加热分解试样 ,酸化溶解残渣 ,ICP- AES直接测定水泥中的杂质元素镁、铁 ,方法的检出限为 6— 4 2μg/ m L,回收率和精密度分别为 98.3%— 99.5 %和 1.2 %— 1.3% ,结果较为满意。可快速简便地用于进出口水泥日常检验。
The cement sample was dissolved with mixed acid of hydrofluoric acid and perchloric acid under heating,and acidulated with hydrochloric acid.The amounts of Mg and Fe in the sample was determined by ICP-AES.The detection limits are in the range of 6—42μg/mL.The recovery rates and precision of the method are in the range of 98.3%—99.5% and 1.2%—1.3%,respectively.The method is simple and rapid with satisfactory results,and can be used in spectral analysis of cement daily inspection.
出处
《光谱实验室》
CAS
CSCD
2004年第4期742-744,共3页
Chinese Journal of Spectroscopy Laboratory
