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基于微量 Ge- 1 32对过氧化氢氧化甲基橙退色反应有阻抑作用 ,提出了阻抑退色光度法测定微量Ge- 1 32的新方法。该方法线性范围为 6 .88— 2 4.0 8μg/m L。用于模拟样品的测定 ,回收率在 93%— 99%范围内。
Based on the suppressive effect of trace amount of Ge-1 32 on the fading reaction of methyl orange oxidized by hydrogen peroxide, a new method of depressing discoloration spectrophotometry for the determination of trace amount of Ge-1 32 was proposed. The linear range of this method is 6 .88-2 4.0 8 μg / m L. For the simulation of the sample determination, the recovery rate is in the range of 93% - 99%.