氢化物发生-原子荧光光谱法测定电子级磷酸中的砷含量

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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0.042 5 ng/mL,精密度为1.66%,加标回收率为99.1%~101.2%.
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