该文首次用偏最小二乘法解析超高灵敏多元金属卟啉螯合体系的重叠荧光光谱,提出了同时测定痕量锌镉铅的计算分析方法.在强碱性介质中,TWEEN－80增效作用下,于沸水浴内加热30MIN,ZN2+、CD2+、PB2+与MESO－四－(4－甲氧苯基)－卟啉螯合荧光反应能进行完全.该法用于合成试样及环境水样中锌、镉、铅的同时测定,加入回收率在93.2％~107％以内.“,”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 simu...