【摘要】 研究了以非离子型乳化剂ＯＰ与正戊醇、正庚烷、水四组分构成的微乳液为介质，铁与邻苯酚紫的显色体系．在给定条件下，该显色体系的ε６１４＝６．４４×１０４Ｌ／ｍｏｌ·ｃｍ，与以水为介质和乳化剂ＯＰ胶束为介质比较，灵敏度显著增加，且最大吸收波长也分别向长波方向移动更多还原

【Abstract】 The effect of microemulsion,OP/n C 5H 11 OH/n C 7H 16 /H 2O as a medium of Fe(Ⅲ) PV complex is studied.The apparent molar absorptivity is 6 44×10 4 L·mol -1 ·cm -1 at 614nm,Beers law is obeyed in the range of 0￣2 mg/L for Fe(Ⅲ).This method is applied to the determination of Fe in water.The results is satisfactory. [更多还原