THEORETICAL-STUDY OF THE REDOX AND ACID-BASE EQUILIBRIA OF 2,6-DICHLOROINDOPHENOL IMMOBILIZED ON AMBERLITE XAD-4

被引:3
作者
GOODLET, G [1 ]
NARAYANASWAMY, R [1 ]
PRZYBYLKO, A [1 ]
机构
[1] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT INSTRUMENTAT & ANALYT SCI,MANCHESTER M60 1QD,ENGLAND
关键词
IMMOBILIZED REAGENT; MATHEMATICAL MODELING; REDOX INDICATOR;
D O I
10.1016/0003-2670(93)E0602-E
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
By using three equations, viz., the Nernst equation, the acid-base dissociation constant equation and the equation for the Kubelka-Munk function for reflectance, an equation describing the redox behaviour of the immobilised indicator 2,6-dichloroindophenol has been formulated. After determination of the acid dissociation constant of the reduced form of the indicator, theoretical responses were calculated and compared to the experimental responses. The results indicate that the redox equilibrium involves a one-electron transfer in the pH range 2 to 5.
引用
收藏
页码:285 / 291
页数:7
相关论文
共 8 条
[1]  
BISHOP E, 1972, INDICATORS, P472
[2]  
BRENNAN D, LABORATORY MANUAL EX, P128
[3]   EFFECT OF PH ON THE REDOX EQUILIBRIA OF IMMOBILIZED 2,6-DICHLOROINDOPHENOL [J].
GOODLET, G ;
NARAYANASWAMY, R .
ANALYTICA CHIMICA ACTA, 1993, 279 (02) :335-340
[4]  
GUESTRIN HR, 1992, THESIS U MANCHESTER
[5]   APPLICATION OF KUBELKA - MUNK DIFFUSE REFLECTANCE THEORY TO OPTICAL FIBER SENSORS [J].
GUTHRIE, AJ ;
NARAYANASWAMY, R ;
RUSSELL, DA .
ANALYST, 1988, 113 (03) :457-461
[6]  
Kortum G, 1969, SPECTROSCOPY-US
[7]  
NARAYANASWAMY R, 1989, MIKROCHIM ACTA, V1, P293
[8]  
Narayanaswamy R., 1986, International Journal of Optical Sensors, V1, P403