锡-水杨基荧光酮极谱络合吸附波研究  

STUDIES ON POLAROGRAPHIC ADSORPTIVE COMPLEX WAVE OF TIN—SALICYL FLUORONE

作　　者：李益恒[1] 朱志伟[1] 

机构地区：[1]湘潭大学化学系

出　　处：《湘潭大学自然科学学报》1992年第4期22-25,共4页Natural Science Journal of Xiangtan University

摘　　要：在1.6×10^(-2)mol/L草酸溶液(pH2.0)中,锡-水杨基荧光酮络合物在单扫示波极谱仪上产生一灵敏的络合吸附波,峰电位在-0.56V(vs.SCE),导数波高与锡浓度在2.0×10^(-3)～1.3×10^(-6)mol/L范围内呈线性关系.研究了极谱波的性质和电极反应机理.方法已应用于铜、锌合金中痕量锡的测定。In a supporting electrolyte containing 1.6x10^(-2)mo1/L oxalicacid and 1.6x10^(-5)mol/L salicyl fluorone,when pH is 2.0,a sensitive adsorp-tive complex wave of tin-salicyl fluorone was obtained by using singlesweep polarography. The peak potential is -0.56V (vs, SCE).Thechange of peak height. with the concentration of tin is linear in therange from 2.0×10^(-8)to 1.3×10^(-6)mol/L.The method has been applied todetermine trace tin in copper alloys and zinc alloys with satisfactoryresults.

关 键 词：锡 水杨基荧光酮 单扫描极谱 

分 类 号：O614.432[理学—无机化学]