四环素体系分光光度法测定电镀液中钐的研究

Study on Determination of Samarium in Electroplating Solution by Spectrophotometry with Tetracycline System

提出在弱碱性介质中对钐－四环素体系采用分光光度法测定钐的方法，测定波长为４０４ｎｍ．本方法具有较好的选择性和灵敏度，方法的回收率为９７．１％～１０３．８％，检出下限为３．９３×１０－８ｇ／ｍＬ．

A spectrophotometric method is used to determine the contents of samarium in an electroplating solution, with tetracycline as the complex reagent. The contents of samarium is related to the absorption value at 404 nm. This method is simple, convenient and accurate. It can be used in the determination of samarium in an electroplating solution. The detective limit is 3.93×10 -8 g/mL and the recoveries are from 97.1 % to 103.8 %.