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本文综述了通过钼杂多酸形成问接测定磷、砷、硅、锗、铌、钍、钛、钒和铈等元素的原子吸收分光光度法。在所形成的杂多酸络合物中,待测元素的一个原子与6个或12个钼原子化合,因此直接测定钼以间接测定待测元素,有利于提高分析灵敏度。通常这种间接法对上述元素的分析灵敏度比直接法的灵敏度高一到四个数量级,因元素而异。
In this paper, the atomic absorption spectrophotometry for the determination of phosphorus, arsenic, silicon, germanium, niobium, thorium, titanium, vanadium and cerium by molybdenum heteropoly acid is reviewed. In the formed heteropolyacid complex, one atom of the element to be tested is combined with 6 or 12 molybdenum atoms. Therefore, the direct determination of molybdenum to indirectly measure the element to be tested is advantageous for improving the analysis sensitivity. Usually this indirect method of analysis of the above elements sensitivity than the direct method of sensitivity one to four orders of magnitude, depending on the elements.