The absorbance measued by spectrophotometer at 70nm was plotted against the different molar concentration of cupric salt in pH=0 aqueous solution of Cu~(+)-PVA. The range of the determination of CuCl_·H_O is ～0 mg/00ml.
The absorbance measued by spectrophotometer at 70nm was plotted against the different molar concentration of cupric salt in pH=0 aqueous solution of Cu~(+)-PVA. The range of the determination of CuCl_·H_O is ～0 mg/00ml.
以pH=0的Cu~(+)-PVA-水体系在70nm波长下,用分光光度计测定铜(Ⅱ)盐量在～0mg/00ml范围内可得到较满意的结果。