Mn(1,10-phen.)_3^(2+)─鲁米诺—KIO_4化学发光体系与应用

Chemiluminescence System of Luminol-KIO_4-Mn(1,10-phen.)_3^(2+) and Its Application

本文研究了Mn（1，10－phen）32+配合物直接催化鲁米诺—KIO4体系产生强烈地化学发光反应。以1，10phen．为配位体时，Mn（Ⅱ）的检出限为2．4×10-10g／mL。工作曲线线性响应浓度范围在5×10－9～1×10－7g／mL。在检测6×10-5g／mLMn（Ⅱ）浓度时，RSD为2.3％。配合物化学发光法检测矿泉水、电池厂排污水中痕量Mn（Ⅱ）可获得满意结果。

This paper reports a new complex chemiluminescence, i. e. luminol-KIO4 catalyzed by Mn(1, 10-phen. )32+ complex. Based on this catalyst a new chemiluminescence method for determining trace of Mn(Ⅱ) is proposed. The detection limit is 2. 4 ×10-10g/mL Mn(Ⅱ ) and the variation coeffient at a manganeseconcentration of 6 ×10-5/L, Mn(Ⅱ) is 2. 3% (n= 5). This method has been satisfactorily applied in the determination of trace manganeseion in mineral and polluted waters samples.