P cation exchanger

Peschel, G., and Ludwig, P., Cation exchange on oxide surfaces as influenced by surface hydration phenomena. 1. Alkali metal ions on silica, Ber. Bunsenges. Phys. Chem., 91, 536, 1987. 

Hydrogen bond basicity (p) Cation-exchange parameter (k ) Hydrogen bond basidly (B)... 

Kelley, W.P., Cation Exchange in Soils, Reinhold, New York, 1948... 

Indium with 0.4 M and finally lead with 1-2 M hydrochloric acid. Copper, zinc and Iron-III are removed with the lead (S12). Separation of leiid from molybdenum on Wolftlt-P cation exchange resin by elution of molybdenum with citric acid Is also described (S12). 

Alternatively an ice-cold dilute solution of sodium peroxide is passed through a column containing a cation-exchanger of the synthetic type (p. 274) where the cation is hydrogen (i.e. H3O then exchange occurs ... 

Figure 12.22 SFC-GC analysis of aromatic fraction of a gasoline fuel, (a) SFC trace (b) GC ttace of the aromatic cut. SFC conditions four columns (4.6 mm i.d.) in series (silica, silver-loaded silica, cation-exchange silica, amino-silica) 50 °C 2850 psi CO2 mobile phase at 2.5 niL/min FID detection. GC conditions methyl silicone column (50 m X 0.2 mm i.d.) injector split ratio, 80 1 injector temperature, 250 °C earner gas helium temperature programmed, — 50 °C (8 min) to 320 °C at a rate of 5 °C/min FID detection. Reprinted from Journal of Liquid Chromatography, 5, P. A. Peaden and M. L. Lee, Supercritical fluid chromatography methods and principles , pp. 179-221, 1987, by courtesy of Marcel Dekker Inc.

Maaloum, M Pernodet, N Tinland, B, Agarose Gel Structure Using Atomic Force Microscopy Gel Concentration and Ionic Strength Effects, Electrophoresis 19, 1606, 1998. Mackie, IS Meares, P, The Diffusion of Electrolytes in a Cation-Exchange Resin Membrane I. Theortical, Proceedings of the Royal Society of London Series A 232, 498, 1955. 

Figure 8.24 Separation of the major deoxyribonucleosides and their 5 - monophosphate deoxynucleotides on a strong cation exchange column (column one) and a reversed-phase column. The unseparated nucleosides. A, on the ion- exchange column were switched to the reversed-ptose column. Pe2dc Identification A = nucleosides, B d-CMP, C d-AMP, D - d-GJIP, E - d-CVD, P d-UKO, G THD, and H = d-AOO. (Reproduced with permission from ref. 298. Copyright Preston Publications, Inc.)...

Figure 5 Separation of pharmaceuticals, including amines, on strong cation exchange. Column 0.46 x 15 cm Merckosorb SI-60-SCX, 5 p. Eluent 50 mM aqueous ammonium formate-10% ethanol, pH 4.8. Flow 1 ml/min. Temperature 50°C. The peaks are (1) aspirin, (2) paracetamol, (3) phenacetin, (4) caffeine, (5) phenylephrine, (6) salbutamol. (Reproduced with permission of Elsevier Science from Cox, G. B., Loscombe, C. R., Slucutt, M. J., Sugden, K., and Upheld, J. A., /. Chromatogr., 117, 269, 1976).

Kwon, S.-M., Lee, K.-P., Tanaka, K., and Ohta, K., Simultaneous determination of anions and cations by ion-exclusion chromatography-cation-exchange chromatography with tartaric acid/18-crown-6 as eluent, /. Chromatogr. A, 850, 79, 1999. 

Breadmore, M. C., Macka, M., and Haddad, P. R., Manipulation of separation selectivity for alkali metals and ammonium in ion-exchange capillary electrochromatography using a suspension of cation exchange particles in the electrolyte as a pseudo stationary phase, Electrophoresis, 20, 1987, 1999. 

Hu, Y. and Carr, P. W., Synthesis and characterization of new zirconia-based polymeric cation-exchange stationary phases for high-performance liquid chromatography, Anal. Chem., 70, 1934, 1996. 

Clausen, A. M., Subramanian, A., and Carr, P. W., Purification of monoclonal antibodies from cell culture supernatants using a modified zirconia-based cation-exchange support, /. Chromatogr. A, 831, 63, 1999. 

Litowski, J. R., Semchuk, P. D., Mant, C. T., and Hodges, R. S., Hydrophilic interaction/cation-exchange chromatography for the purification of synthetic peptides from closely related impurities Serine side-chain acetylated peptides, /. Peptide Res., 54, 1, 1999. 

Makino, Y., Suzuki, A., Ogawa, T., and Shirota, O., Direct determination of methamphetamine enantiomers in urine by liquid chromatography with a strong cation-exchange precolumn and phenyl-p-cyclodextrin-bonded semimicrocolumn, ]. Chromatogr. B, 729, 97, 1999. 

JS Mackie, P Meares. The diffusion of electrolytes in a cation-exchange resin membrane I. Theoretical. Proc Roy Soc Lond A232 498-509, 1955. 

Rbeida, O., Christiaens, B., Hubert, Ph., Lubda, D., Boos, K.-S., Crommen, J., Chiap, P. (2005). Integrated online sample cleanup using cation exchange restricted access sorbent for the LC determination of atropine in human plasma coupled to UV detection. J. Pharm. Biomed. Anal. 36/5, 947-954. 

Aebersold, R., Mann, M. (2003). Mass spectrometry-based proteomics. Nature 422,198-207. Alpert, A.J., Andrews, P.C. (1988). Cation-exchange chromatography of peptides on poly(2-sulfoethyl aspartamide)-silica. J. Chromatogr. 443, 85-96. 

RP Silica-based strong cation exchanger Phenyl-carbamate P-cyclodextrin Motoyama et al., 2002... 

Desmazieres, B., Portet, E, Desbene, P.L. (1993). Analytical study of highly condensed nonionic surfactants. Separation on cation exchangers. Chromatographia 36, 307-317. 

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