Research ArticleOpen AccessGoogle Scholar indexed
Donnan Electric Potential Dependence of Intraparticle Diffusion of Malachite Green in Single Cation Exchange Resin Particles: A Laser Trapping-Microspectroscopy Study
Department of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, Japan
Department of Chemistry, Graduate School of Science, Hiroshima University, Higashihiroshima-City, Japan
Department of Chemical Sciences and Engineering, Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Japan
- 1 Department of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, Japan
- 2 Department of Chemistry, Graduate School of Science, Hiroshima University, Higashihiroshima-City, Japan
- 3 Department of Chemical Sciences and Engineering, Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Japan
American Journal of Analytical Chemistry·Volume 03 (2012)·Pages 188–194·Published 28 March 2012·DOI10.4236/ajac.2012.33027
Copy link · social · email
Abstract
A laser trapping-microspectroscopy technique combined with excitation energy transfer from a fluorescent cationic dye (Rhodamine B, RB + ) to a non-fluorescent cationic dye (Malachite Green, MG + ) was employed to study pH effects on the diffusion coefficients of MG + (D(MG + )) in single cation-exchange resin microparticles with the diameters of 16 μm. When RB+-pre-adsorbed resin particles were soaked in an aqueous MG+ solution, the RB+ fluorescence was quenched gradually with the soaking time. The time course of the quenching efficiency of RB + by MG+ was then used to evaluate the D(MG + ) value in the particle. The D(MG + ) value increased from 1.1 × 10 -11 to 4.3 × 10 -11 cm 2 .s– 1 on going the solu- tion pH value from 9 to 4. The results were explained reasonably by a Donnan electric potential model.
KeywordsDonnan Electric PotentialIntraparticle DiffusionCation-Exchange ReactionSingle MicroparticleLaser Trapping-Microspectroscopy
- O. Samuelson, “Ion Exchange Separations in Analytical Chemistry,” John-Wiley, New York, 1963.
- F. Helfferich, “Ion Exchange,” McGraw-Hill, New York, 1962.
- C. E. Harland, “Ion Exchange: Theory and Practice,” The Royal Society of Chemistry, Cambridge, 1994.
- O. V. Bobreshova, A. V. Parshina, K. A. Polumestnaya, N. G. D’yachkova and L. A. Zagorodnykh, “Interfacial Potential Difference in Electro-membrane Systems with MA-41 Anion-Exchange Membranes and Alkaline Solutions of Glycine,” Russian Journal of Electrochemistry, Vol. 43, No. 11, 2007, pp. 1321-1325. doi:10.1134/S1023193507110171
- V. M. Bhandari, “Implications of Weak Donnan Potential in Ion-Exchange Reactions. An Alterante Strategy for Modeling Sorption Processes,” Separation Sciences and Technology, Vol. 33, No. 13, 1998, pp. 2009-2024. doi:10.1080/01496399808545043
- P. Ramírez, A. Alcaraz, S. Mafé and J. Pellicer, “Donnan Equilibrium of Ionic Drugs in pH-Dependent Fixed Charge Membranes: Theoretical Modeling,” Journal of Colloid and Interface Science, Vol. 253, No. 1, 2002, pp. 171- 179. doi:10.1006/jcis.2002.8508
- K. No-mura, “Separation of the Diffusion Potential within a Membrane and the Donnan Potential on the Basis of a Measurement of Transient Membrane Potentials,” Bulletin of Chemical Society Japan, Vol. 69, No. 9, 1996, pp. 2533-2537. doi:10.1246/bcsj.69.2533
- C. A. Burns, J.-F. Boily, R. J. Crawford and I. H. Harding, “Cd(II) Binding by Particulate Low-Rank Coals in Aque- ous Media: Sorption Characteristics and NICA-Donnan Models,” Journal of Colloid and Interface Science, Vol. 278, No. 2, 2004, pp. 291-298. doi:10.1016/j.jcis.2004.06.001
- H. Yao, Y. Takada and N. Kitamura, “Electrolyte Effects on CdS Nanocrystal Formation in Chelate Polymer Particles: Optical and Distribution Properties,” Langmuir, Vol. 14, No. 3, 1998, 595-601. doi:10.1021/la970480g
- H.-B. Kim, S. Habuchi, M. Hayashi and N. Kitamura, “Direct Excitation Energy Transfer as a Technique for in situ Measurements of Ion-Exchange Processes in Single Polymer Particles,” Analytical Chemistry, Vol. 70, No. 1, 1998, pp. 105-110. doi:10.1021/ac970808a
- H.-B. Kim, M. Hayashi, K. Na-katani, N. Kitamura, K. Sasaki, J. Hotta and H. Masuhara, “In Situ Measurements of Ion-Exchange Processes in Single Polymer Particles: Laser Trapping Microspectroscopy and Confocal Fluorescence Microspectroscopy,” Analytical Chemistry, Vol. 68, No. 3, 1996, pp. 409-414. doi:10.1021/ac951058c