电感耦合等离子体原子发射光谱法测定石英岩中杂质元素

摘要

This article uses HF-HNO3 to dissolve the sample,and inductively coupled plasma atomic emission spectrometry to determine the common impurity elements in quartzite rock simultaneously,for example,Al、Ca、Fe、K、Mg、Mn、Na、P、Ti,etc.The recovery of this method is 95% to 105%,the relative standard deviation(RSD,n = 9) is less than 5%,according to quartzite rock national standard material verification,the measured values and the standard certified values have no significant difference.The method is simple,rapid,accurate,and can be used for the determination of large quantities of quartzite rock sample.%采用氢氟酸-硝酸溶解试样,电感耦合等离子体原子发射光谱法测定石英岩中铝、钙、铁、钾、镁、锰、钠、磷、钛等常见杂质元素。方法回收率95%~105%,相对标准偏差（RSD,n=9）小于5%,经石英岩国家标准物质验证,测定值与认定值无明显差异。方法简单、快速、准确,可用于大批量石英岩试样的测定。