The potential application of the electrical potential method in on_line measurement of the concentration of sodium dithionite aqueous solution in pulp industry is proposed.

• 同时指出,在纸浆漂白生产中可以应用电位法代替滴定法测定连二亚硫酸钠水溶液的浓度,以实现在连续生产中自动控制漂液的浓度。