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作者用铜片代替铂网作阴极,在少量的吐温80存在下,电解测定锌可得较好效果,现以测定铝锌合金中锌含量为例简述该过程如下: 钻取铝锌合金样品0.3～0.35g,置于250ml烧杯中,加NaOH(20%)溶液10ml微热溶解后转入100ml烧杯,加水到液面接近烧杯口处,在电磁搅拌下加吐温80稀释液(0.5ml吐温80试剂冲稀至10ml)50μl以期获得致密的锌沉积层.用铂丝(长短皆可)作阳极,铜片(0.5×50×250mm)作阴极,铜片经盐酸、去污粉、蒸馏水、无水乙醇处理后吹风机烘干,称重。利用铜
The authors used copper foil instead of platinum mesh as the cathode, in the presence of a small amount of Tween 80, the determination of zinc electrolysis can be better, now to determine the zinc content of aluminum-zinc alloy as an example to briefly describe the process is as follows: drill aluminum-zinc alloy Sample 0.3 ~ 0.35g, placed in a 250ml beaker, add NaOH (20%) solution 10ml slightly dissolved into the 100ml beaker, add water to the liquid near the beaker mouth Department, under electromagnetic stirring plus Tween 80 dilution ml Tween 80 reagent dilute to 10ml) 50μl in order to obtain a dense layer of zinc deposition with platinum wire (the length can be) for the anode, copper (0.5 × 50 × 250mm) for the cathode, copper, hydrochloric acid, , Distilled water, dehydrated ethanol dried hair dryer, weighed. Using copper