摘要
通过结合硝酸-盐酸-氢氟酸体系消解和电感耦合等离子体发射光谱检测,本文开发出有机硅渣浆中Al、Ba、Ca、Cr、Cu、Fe、Mg、Mn、Na、Zn等10 种金属元素含量的测定方法.实验结果表明,用于检测 10 种元素的标准曲线均线性良好,线性范围宽;本方法加标回收率为 91.3%～108.7%,方法准确性好;重复测定 7 组有机硅渣浆样品,各金属元素含量的RSD均小于4.78%,实验精密度高.本方法适合检测有机硅渣浆中的 10 种金属元素.
Abstract
Combining the digestion of nitric acid-hydrochloric acid-hydrofluoric acid with the detection of inductively coupled plasma emission spectrum,this paper developed a method for the detection of Al,Ba,Ca,Cr,Cu,Fe,Mg,Mn,Na,Zn in silicone slurry.The results showed that the standard curves of 10 elements have good linearity and wide linear range.The recovery rate of the method was 91.3％ to 108.7％,which was showed the method has good accuracy.The RSD of each metal element content in the silicone slurry samples for 7 repetitions was less than 4.78％,which was showed the method has high precision.In short,the method is suitable for the detection of 10 metal elements in silicone slurry.
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