离子选择性电极法测定四氧化三钴中微量氯离子

Analytical Instrumentation(2020)

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Abstract
试验采用水加热浸取四氧化三钴中的氯离子,在离子强度调节剂硝酸钠存在下,用氯离子选择电极测定四氧化三钴中水溶性氯离子含量,试验结果表明,样品加标回收率在95.5~112% 之间,相对标准偏差:≤4.5%,满足0.01% ~1.0% 范围内氯离子的测定.此法准确度高,操作快速、简便.
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