【摘要】 基于ZnO纳米颗粒（ZnO nanoparticles,ZnO NPs）增敏luminol-H₂O₂化学发光,结合流动注射技术,研究建立一种简单、快速、灵敏地测定雨水中微量H₂O₂的方法。考察pH,ZnO NPs、luminol和H₂O₂浓度对化学发光的影响。在优化条件下,H₂O₂浓度在0.06²0μmol/L范围内,H₂O₂浓度的对数（lg c）和化学发光峰面积的对数（lg A）具有良好的线性关系,检出限（LOD）为0.016μmol/L（3σ）。将此方法应用于雨水中微量H₂O₂的测定,回收率为95%¹02%,RSD（n=11）为2.41%。更多还原

【Abstract】 Based on the fact that the ZnO nanoparticles（ZnO NPs）can enhance the weak chemiluminescence（CL）of the luminol-H₂O₂ system,a simple,fast and sensitive flow injection CL method was developed for the determination of H₂O₂ in rainwater.Experimental parameters affecting CL were optimized,including pH and concentrations of ZnO NPs,luminol and H₂O₂.Under optimal conditions,the logarithm of CL peak area（lg A）is linear with the logarithm of the concentration（lg c）of H₂O₂ when the concentration of H₂O₂ ranges from 0.06 to 20μmol/L and its limit of detection is 0.016μmol/L（3σ）.The method has been successfully applied to the determination of H₂O₂ in rainwater,giving recovery rate in the range of 95%¹02% and RSD（n=11）of 2.41%.更多还原