桑色素-过氧化氢体系催化光度法测定痕量锰的研究

Study on the Catalytic Spectrophotometric Determination of Trace Manganese

本文建立了基于过氧化氢氧化桑色素这一新指标反应催化光度法测定痕量锰的新方法。该法的检出限为０．００４μｇ／ｍＬ，线性范围为５～８０ｎｇ／ｍＬ。该法已用于白酒中锰的测定。

A new catalytic spectrophotometric method for determining trace amounts of manganese has been developed.The method is based on catalytic oxidation of morin by hydrogen peroxide.Manganese has catalytic effect.The detection limit for manganese is 0 004 μg/mL.The linear range of the determination is 5 80 ng/mL of manganese.The method has been used to determine trace manganese in wine.