The gamma irradiated aqueous samples containing I₂ and I⁻ were measured by two different analysis methods using an UV–VIS spectrophotometer. One is the I₂ concentration was determined by using the equilibrium relationship between I₃⁻ and I⁻. The other is I₂ concentration was measured after extracted by toluene. In the I₂ and total I measurements, both methods were confirmed to have an accuracy within 4%. The I₂ concentrations measured by the toluene extraction method were always lower for the identical samples than those measured by the equilibrium relationship method. This was understood as a loss occurring in the toluene extraction step.

中文翻译：

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γ辐照溶液中分子碘浓度测定的准确度分析

使用紫外-可见分光光度计通过两种不同的分析方法测量含有 I ₂和 I ^-的伽马辐射水样。一种是通过使用I ₃ ^-和I ^-之间的平衡关系来确定I ₂浓度。另一种是甲苯萃取后测定的I ₂浓度。在I ₂和总I 测量中，两种方法的准确度均在4% 以内。我₂对于相同的样品，甲苯萃取法测得的浓度总是低于平衡关系法测得的浓度。这被理解为甲苯萃取步骤中发生的损失。