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采用氢化物发生-原子荧光光谱法测定电子级磷酸中的砷含量,研究了仪器的工作条件及硼氢化钾浓度、酸度、共存元素、磷酸基体对测定的影响,方法的检出限为0.0425ng/mL,精密度为1.66%,加标回收率为99.1%~101.2%。
Abstract:Determination of arsenic in electronic-grade phosphoric acid by HG-AFS is researched.The instrument working conditions and the influences of KBH4 concentration,acidity,coexisting elements,phosphate matrix are studied.The detection limit of this method is 0.042 5 ng /mL with relative standard deviation of 1.66%.Recovery of standard addition method is in the range of 99.1%~101.2%.
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基本信息:
DOI:
中图分类号:TQ126.35
引用信息:
[1]杨润泉.氢化物发生-原子荧光光谱法测定电子级磷酸中的砷含量[J].磷肥与复肥,2010,25(02):54-55.
基金信息: