线性滴定法是五十年代初由Gran首先提出的一种新的容量分析法,六十年代后期,Ingman-Johansson等人的改进使其更臻完善,本文将该法引入镀铬液的分析中,取得了令人满意的结果。 (一)仪器与试剂 TH-Ⅱ型自动滴定仪(常州市无线电二厂);自动打印机,自动加液器,塑料螺旋桨搅拌.231型玻璃电极为指示电极,217型双盐桥饱和甘汞电极为参比电极(外桥液 Linear titration is a new capacity analysis method first proposed by Gran in the early 1950s. In the late 1960s, the improvement of Ingman-Johansson et al. Further refined it. In this paper, the method was introduced into the analysis of chrome plating liquid, Satisfactory results have been achieved. (A) Instruments and reagents TH-Ⅱ type automatic titrator (Changzhou Radio Factory); Automatic printer, automatic dosing device, plastic propeller stirring .231-type glass electrode for the indicator electrode, 217 double salt bridge saturated calomel electrode Reference electrode (external bridge solution