【摘要】 <正> 磷和硫元素的共振线都在真空紫外区(分别在178nm及180.7nm),用普通的原子吸收分光光度计不能直接测定。我们改进Welz提出的间接测定无机磷酸盐的方法并用于有机磷的微量分析。对若干有机磷化合物作测定,并与容量法测定结果比较,分析误差为±0.3％。有机硫化合物通常以硫酸根形式用容量法测定。我们改进Dunk提出的间接测定硫酸根的原子吸收分光光度法,用于若干样品测定,并与文献测得结果比较,分析误差±0.3％。更多还原

【Abstract】 A convenient method for the determination of phosphorus and sulfur in a variety of organophosphorus and sulfur compounds based on atomic absorption spectrometry have been recommended.The Samples were decomposed by oxygen flask method.The estimation of phosphorus was based on the formation of phosphormolybdate compound with the subsequent determination of molybdenum quantitatively and the estimation of sulfur was worked out by adding a known quantity of barium chloride and the unreacted excess barium were determined by AA.The relative error of thesemethods were found to be less then±0.3%.更多还原