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《SPECTROSCOPY AND SPECTRAL ANALYSIS》 1998-04
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SIMULTANEOUS DETERMINATION OF ZINC,CADMIUM AND LEAD CHELATED BY PORPHYRIN WITH PARTIAL LEAST SQUARES FLUORIMETRY

DING Yaping,WU QingshengDept.of Appl.Chem.,Anhui Agricultural University,230036 HefeiCHENG Liya,WANG XinweiAnhui Geology and Mineral Testing Center,230000 Hefei  
The fluorescence spectra of superhighly sensitive chelate systems containing multicomponent metal porphyrins are analysed by partial least squares method,and a computerized analysis for the simultaneous determination of zinc,cadmium and lead is developed.Zinc,cadmium and lead can quantitatively combine with meso-tetrakis-(4-methoxyphenyl)-porphyrin in a strong base medium and in the presence of Tween80 when they are heated for 30 min in a boiling waterbath.The proposed method has been applied to the simultane ous determination of zinc,cadmium and lead in artificial and environmental water samples,and the recovery ratios are in the range of 93.2—107%.
【Fund】: 安徽省自然科学基金
【CateGory Index】: O657.31
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