【摘要】 根据铅(Ⅱ)催化K3[Fe(CN)6]氧化Luminol产生化学发光的事实,结合流动注射分析技术,建立了一种发光定量测定铅的新方法。实验结果表明,该方法对Pb(Ⅱ)的检出限为3.8×10-7mol/L,工作曲线线性范围为1.0×10-6～1.0×10-4mol/L,测定浓度为1.0×10-5mol/L,Pb(Ⅱ)的相对标准偏差为3.5%(n=11),通过对汽油样品中铅的检测,结果满意。更多还原

【Abstract】 A new method for determination of lead in gasoline was developed by flow injection-chemiluminescence method based on the fact that Lead（Ⅱ）catalyze the luminol-potassium ferricyanide oxidation reaction.The result showed that the detection limit for Pb（Ⅱ） is 3.8×10^-7 mol/L,and the linearity of work curve is at range of 1.0×10^-6～1.0×10^-4 mol/L,the concentration of determination is 1.0×10^-5 mol/L. The RSD is 3.5% for 11 measurements. The result is satisfied through the detecting of lead in gasoline.更多还原