机构地区: 南昌大学
出 处: 《高等学校化学学报》 1996年第9期1381-1383,共3页
摘 要: 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.