KIO_4氧化茜素红催化荧光法测定痕量铁（Ⅲ）

Catalysis-fluorescence Determination of Trace Iron(Ⅲ)Using Alizarin Red

ＫＩＯ＿４氧化茜素红催化荧光法测定痕量铁（Ⅲ）俞英，聂瑞华，黄坚锋，谢世涛（南昌大学应用化学研究所机电系，南昌，３３００４７）关键词催化荧光法，茜素红，铁（Ⅲ）茜素红主要作为光度法测定铝、铍的试剂［１，２］，我们曾用其催化荧光测定痕量钒［３］．进一步...

A new catalysis-fluorescence determination method of trace iron(Ⅲ)has been de scribed by reagent alizarin red, at λex/λem=380 nm/450 nm.The experimental conditions have been optimized by multiobject punish function simplex method, which are 0.1%alizarin red 4. 2 mL, 0. 5 mol/L HCl 3. 3 mL,saturated solution KIO4 5.7mL,temp.85 ℃,time:12.5 min, the detection limit is 0.52 ng/mL.This method is applied to determine trace iron (Ⅲ)in water sample and alloy samples with satisfactory results.