【摘要】 在ｐＨ７．１的六次甲基四胺和０．１ｍｏｌ／Ｌ的ＫＣｌ底液中，Ｐｂ２＋－ｐｈｅｎ－Ｃａｄｉｏｎ于－０．４３Ｖ处产生灵敏的极谱波，铅浓度在３×１０－８～１×１０－６ｍｏｌ／Ｌ之间与峰电流成良好的线性关系，检测下限可达１×１０－８ｍｏｌ／Ｌ，线性回归方程为：Ｉｙ＝５６５．０Ｃｘ－４１．１０，相关系数为０．９９８１。测定废水中铅的标准加入回收率可达９６．２％～１０１．７％。更多还原

【Abstract】 The polarographic adsorptive wave of leadphencadion was studied. Its peak potential was 0.43V(vs. SCE). The optimum conditions are in hexamethylenetetramine buffer at pH 7.1, 0.1mol/L KCl, 110-5mol/L phen, 110-6mol/L Cadion. The changes of peak height with the concentration of lead() are linear in the range of 310-8110-6mol/L, and the detection limit is 110-8mol/L. Lead in waste water samples was determined.更多还原