催化光度法测定痕量锰的研究

Study on the Catalytic Photometric Determation of Trace Amounts of Manganese

研究了在HAc-NaAc缓冲溶液中 1 1 0邻菲口罗啉存在下 ,痕量锰 (Ⅱ )催化高碘酸钾氧化酸性铬蓝K的褪色反应。λmax=5 40nm ,线性范围 0 8～ 2 4ng·mL- 1,检出限为 4 85× 1 0 - 8g·L- 1。用于池塘水和人发中痕量锰的测定 。

A study is made in a HAc-NaAc buffer medium,the catalytic effect of trace amounts of manganese on the oxidation of acid chrome blue K by potassium periodate in the presence of 1,10-phenanthroline,λ max =540 nm,the linear range for manganese is 0 8～2 4 ng·mL -1 ,the detection limit is 4 85×10 -8 g·L -1 .The method has been applied to the determination of trace amounts of manganese in pool water and human hair with satisfactory results.