【摘要】 分别采用重量分析法和等离子体发射光谱 ( ICP- AES)法对钨酸钠样品进行了纯度的测定 ,比较了重量分析法和 ICP- AES法的特点 ,以准确度高的重量分析法的测定结果作为标准 ,校准 ICP- AES法测定钨酸钠样品纯度的准确度 .实验结果表明 ,在工业生产中要求快速测定钨酸钠样品纯度时 ,在准确度要求不是很高的前提下 ,可以用 ICP- AES法代替重量分析法来测定钨酸样品的纯度 ,但在准确度要求极高的情况下 ,仍应采用重量分析法这一经典的定量化学分析方法 .更多还原

【Abstract】 The authors have determined the purity of sodium wolfframate specimen adoptting gravimetric analysis and inductively coupled plasma atomic emission spectrometry.It comparatively analyses the merits and the demerits of gravimetric analysis and inductively couples plasma atomic emission spectrometry.The results determined by precise gravimetric analysis are used for the standards that are to be proofread inductively coupled plasma atomic emission spectrometry.The results of experiment show that we can replace the gravimetric analysis with inductively coupled plasma atomic emission spectrometry when we measure it quickly in the industrial production without being request so accurately.However,when it is requested too much accurately,we must take the classical gravimetric analysis to measure the purity of sodium wolframate specimen.更多还原