重铀酸盐中二氧化硅的分光光度法测定

Uranium Mining and Metallurgy(2013)

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Abstract
建立硅钼蓝分光光度法测定重铀酸盐中二氧化硅的分析方法,对试验条件进行优化。试验结果表明:ρ(SiO2)在0.1~6.0μg/mL时线性良好,线性相关系数(r)>0.999,样品加标回收率为94.0%~107%;2mg磷、50mg钼、1mg砷、60mg硝酸根、20mg铁对SiO2的测定无干扰;w(SiO2)为0.340%时,测定相对标准偏差为5.9%。
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Key words
silicon-molybdenum blue spectrophotometry,silicon dioxide,diuranate
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