【摘要】 本文建立了利用Cr（Ⅲ）—鲁米诺—H₂O₂体系测定H₂O₂的新方法。方法的检测极限是8×10^-10MH₂O₂工作曲线的线性范围是1×10^-9-1×10^-2MH₂O₂。测定的相对标准偏差小于5％。由于试样溶液和所有试剂溶液中都含有较高浓度的EDTA,排除了大多数金属离子的干扰,所以方法具有一定的选择性。此法试用于自来水中H₂O₂的回收试验,结果较好。更多还原

【Abstract】 A new method for the determination of H₂O₂ based on the Cr（Ⅲ）-lumino1-H₂O₂ chemiluminescence system is set uP in the paper. The detection limit of the method is 8×10^-10MH₂O₂. The linear range of the working curves is 7 orders of magnitude from 10^-9to 10^-2 M H₂O₂. The relative standard deviation is less than 5％. The method is selective for H₂O, because of using EDTA to eliminate interference from most metal ions. The method has been applied to the recovery determination of H₂O₂ in running water and the result is satisfactory.更多还原