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根据高放废液中游离酸的测定需求,建立了以橙黄Ⅳ为显色剂流通式分光光度法测定游离酸的方法。对高放废液中游离酸的分析结果表明,该方法精度优于3%(n=3),并具有取样量小,简单快速的特点,同时有效地降低了放射性样品在分析过程中射线对操作人员造成的危害。
According to the determination of free acid in high level of waste liquid, a method was established for the determination of free acid by flow-through spectrophotometry with orange Ⅳ as chromogenic reagent. The analytical results of the free acid in the high-level liquid waste show that the method is better than 3% (n = 3) and has the advantages of small sample amount, simple and fast performance, and effectively reduces the radioactive sample radiation The harm caused by the operator.