【摘要】 本文提出以ICP AES直接测定煤中总硫。通过对样品溶液的制备、光谱干扰等方面的研究 ,确定了最佳分析条件 ,建立了以ICP AES测定煤中总硫的方法。方法快速、准确 ,测定结果与国标法一致。方法回收率在 96 %以上 ,六次测定相对标准偏差小于 3%。更多还原

【Abstract】 A direct method was reported for the determination of total sulfur in coal by inductively coupled plasma atomic emission spectrometry (ICP-AES).The dissolution conditions of coal samples as well as interference conditions of hydrochloric acid and matrix were studied.The recommended method not only proved to be simple and rapid than traditional gravimetric method but show satisfying precision and accuracy as well.The results of samples are as same as gravimetry.The recoveries are more than 96%,and the relative standard deviation of six samples are less than 3%更多还原