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D(-)青霉胺(penicillamine,I]是重金属中毒的解毒药。本文介绍了(Ⅰ)与醋酸铜(Ⅱ)的反应。用银电极在水溶液中作电位滴定。(Ⅰ)与(Ⅱ)的电位滴定是在Britton-Robinson缓冲剂(pH2.03～7.40)和磷酸盐缓冲剂(pH5.30～8.12)中形成稳定的水溶性络合物。滴定中电位变化大约180mV,(Ⅰ)与(Ⅱ)的克分子比是2:1。(Ⅰ)的校正曲线是根据(Ⅰ)在0.16～6.0mg范围内消耗(Ⅱ)的直线关系建立的。(Ⅰ)的回归直线方程是y=0.0054+0.3258x;相关系数
Penicillamine (I) is an antidote for heavy metal poisoning.In this paper, the reaction of (Ⅰ) with copper (Ⅱ) acetate is described.The potentiometric titration of silver (Ⅰ) and ) Potentiometric titration results in the formation of a stable water-soluble complex in Britton-Robinson buffer (pH 2.03 to 7.40) and phosphate buffer (pH 5.30 to 8.12) with a potential change of about 180 mV in titration (I) And (II) is 2: 1. The calibration curve of (I) is based on the linear relationship of (I) consumed (II) in the range of 0.16-6.0 mg. (I) The regression line equation is y = 0.0054 + 0.3258x; correlation coefficient