【摘要】 在乙酸介质中，痕量α，α′－联吡啶作催化剂，Ｓｎ２＋作活化剂，能灵敏地加速过氧化氢氧化二甲苯胺蓝褪色的指示反应。研究了该反应的最佳条件和动力学参数，建立了一种测定痕量Ｓｎ２＋的新方法。方法检测限为３．８×１０－８ｇ／Ｌ，测定范围为０～０．２４μｇ／２５ｍＬＳｎ２＋。已用于测定分离钴废液中的Ｓｎ２＋。更多还原

【Abstract】 new method for the determination of trace Sn2+ was establised.It has been discovered that trace ,bipyridyl can sensitively cataly the discoloration of xylidyl blue by the oxidation of peroxyl in acetic acid.The detection limit is 3.810-8g/L and the linear range is 0024g/25mL for Sn2+.The method is suitable for the determination of Sn2+ in waste water.更多还原