VOL. 608, NOS. 1+2 JOURNAL OF CHROMATOGRAPHY SEPTEMBER II, 1992 CONTENTS 4TH INTERNATIONAL SYMPOSIUM ON HIGH PERFORMANCE CAPILLARY ELECTROPHORESIS, AMSTERDAM, FEBRUARY 9-13, 1992 Foreword by Th. P. E. M. Verheggen On-column transient and coupled column isotachophoretic preconcentration of protein samples in capillary zone electrophoresis by F. Foret, E. Szoko and B. L. Karger (Boston, MA, USA) . . Conversion of capillary zone electrophoresis to free-flow zone electrophoresis using a simple model of their correlation. Applica- tion to synthetic enkephalin-type peptide analysis and preparation by V. KaSiéka, Z. Prusik and J. PospiSek (Prague, Czechoslovakia) Microemulsion electrokinetic chromatography: comparison with micellar electrokinetic chromatography by S. Terabe and N. Matsubara (Hyogo, Japan) and Y. Ishihama and Y. Okada (Kyoto, Japan) Micellar electrokinetic capillary chromatography of neutral solutes with micelles of adjustable surface charge density by J. Cai and Z. El Rassi (Stillwater, OK, USA) Sample self-stacking in zone electrophoresis. Theoretical description of the zone electrophoretic separation of minor compounds in the presence of bulk amounts of a sample component with high mobility and like charge by P. Gebauer (Brno, Czechoslovakia), W. Thormann (Berne, Switzerland) and P. Botek (Brno, Czechoslovakia) Effects ofc arrier electrolyte composition on separation selectivity in capillary zone electrophoresis of low-molecular-mass anions by W. Buchberger (Linz, Austria) and P. R. Haddad (Kensington, Australia) Optimization of selectivity in capillary zone electrophoresis via dynamic pH gradient and dynamic flow gradient by H.-T. Chang and E. S. Yeung (Ames, IA, USA) Laser fluorescence detector for capillary electrophoresis by E. S. Yeung (Ames, IA, USA) and P. Wang, W. Li and R. W. Giese (Boston, MA, USA) Dynamic light-scattering studies of hydroxyethyl cellulose solutions used as sieving media for electrophoretic separations by P. D. Grossman, T. Hino and D. S. Soane (Berkeley, CA, USA) Indirect time-resolved luminescence detection in capillary zone electrophoresis by M. W. F. Nielen (Arnhem, Netherlands) Indirect photometric detection of polyamines in biological samples separated by high-performance capillary electrophoresis by Y. Ma, R. Zhang and C. L. Cooper (Kirksville, MO, USA) Theoretical and experimental aspects of indirect detection in capillary electrophoresis by G. J. M. Bruin, A. C. van Asten, X. Xu and H. Poppe (Amsterdam, Netherlands) Membrane fraction collection for capillary electrophoresis by Y.-F. Cheng, M. Fuchs, D. Andrews and W. Carson (Milford, MA, USA) Low-cost laser-induced fluorescence detector for micellar capillary zone electrophoresis. Detection at the zeptomol level of tetramethylrhodamine thiocarbamy! amino acid derivatives by J.-Y. Zhao, D.-Y. Chen and N. J. Dovichi (Edmonton, Canada) Application of capillary isoelectric focusing with universal concentration gradient detector to the analysis of protein samples by J. Wu and J. Pawliszyn (Waterloo, Canada) Analogy between micelles and polymers of ionic surfactants. A capillary isotachophoretic study of small ionic aggregates in water—organic solutions by C. Tribet, R. Gaboriaud and P. Gareil (Paris, France) Effect of total percent polyacrylamide in capillary gel electrophoresis for DNA sequencing of short fragments. A phenom- enological model by H. R. Harke, S. Bay, J. Z. Zhang, M. J. Rocheleau and N. J. Dovichi (Edmonton, Canada) Switching valve with internal micro precolumn for on-line sample enrichment in capillary zone electrophoresis by A. J. J. Debets, M. Mazereeuw, W. H. Voogt, D. J. van asia H. — K.-P.s ails and U. A. Th. Brinkman (Amsterdam, Netherlands) ; , aay , Capillary electrophoresis washing technique (Short Communication) by S. Abdel-Baky and R. W. Giese (Boston, MA, USA) Vill CONTENTS Adjustment of resolution and analysis time in capillary zone electrophoresis by varying the pH of the buffer by E. Kenndler and W. Friedl (Vienna, Austria) Capillary electrophoresis of fluorescein—ethylenediamine—S'’-deoxynucleotides by W. Li, A. Moussa and R. W. Giese (Boston, MA, USA) Influence of pH on the migration properties of oligonucleotides in capillary gel electrophoresis by A. Guttman (Budapest, Hungary), A. Arai (Kyoto, Japan) and K. Magyar (Budapest, Hungary) Determination of vasoactive intestinal peptide in rat brain by high-performance capillary electrophoresis by J. Soucheleau (Lyon, France) and L. Denoroy (Vernaison, France) Monitoring excitatory amino acid release in vivo by microdialysis with capillary electrophoresis—electrochemistry by T. J. O'Shea, P. L. Weber, B. P. Bammel, C. E. Lunte and S. M. Lunte (Lawrence, KS, USA) and M. R. saan (Dublin, Ireland) Effect of buffer constituents on the determination of therapeutic proteins by capillary electrophoresis by N. A. Guzman, J. Moschera, K. Iqbal and A. W. Malick (Nutley, NJ, USA) Capillary electrophoretic determination of the protease Savinase in cultivation broth by A. Vinther (Bagsvaerd, Denmark), J. Petersen (Gentofte, Denmark) and H. Soeberg (Lyngby, Denmark) Separation of phosphorylated histone H1 variants by high-performance capillary electrophoresis by H. Lindner, W. Helliger, A. Dirschlmayer, H. Talasz, M. Wurm and B. Sarg (Innsbruck, Austria), M. Jaquemar (Klosterneuburg, Austria) and B. Puschendorf (Innsbruck, Austria) Ultramicro enzyme assays in a capillary electrophoretic system by J. Bao and F. E. Regnier (West Lafayette, IN, USA) Capillary electrophoresis of hemoglobins and globin chains by M. Zhu, R. Rodriguez, T. Wehr and C. Siebert (Hercules, CA, USA) Attachment of a single fluorescent label to peptides for determination by capillary zone electrophoresis by J. Y. Zhao, K. C. Waldron, J. Miller, J. Z. Zhang, H. Harke and N. J. Dovichi (Edmonton, Canada) Analysis of antiepileptic drugs in human plasma using micellar electrokinetic capillary chromatography by K.-J. Lee and G. S. Heo (Daeduk Science Town, South Korea) and N. J. Kim and D. C. Moon (Cheongju, South Korea) Confirmation testing of 1 1-nor-A°-tetrahydrocannabinol-9-carboxylic acid in urine with micellar electrokinetic capillary chroma- tography by P. Wernly and W. Thormann (Berne, Switzerland) Study of protein-drug binding using capillary zone electrophoresis by J. C. Kraak, S. Busch and H. Poppe (Amsterdam, Netherlands) Chiral separations of basic drugs and quantitation of bupivacaine enantiomers in serum by capillary electrophoresis with mod- ified cyclodextrin buffers by H. Soini (Bloomington, IN, USA), M.-L. Riekkola (Helsinki, Finland) and M. V. Novotny (Bloomington, IN, USA) Chiral separation by capillary electrophoresis with oligosaccharides by A. D’Hulst and N. Verbeke (Leuven, Belgium) High-performance capillary electrophoresis of unsaturated oligosaccharides derived from glycosaminoglycans by digestion with chondroitinase ABC as 1-phenyl-3-methyl-5-pyrazolone derivatives by S. Honda, T. Ueno and K. Kakehi (Higashi-Osaka, Japan) Separation of natural and synthetic heparin fragments by high-performance capillary electrophoresis by J. B. L. Damm, G. T. Overklift, B. W. M. Vermeulen, C. F. Fluitsma and G. W. K. van Dedem (Oss, Netherlands) Identification of vitamin B,, and analogues by high-performance capillary electrophoresis and comparison with high-perform- ance liquid chromatography by D. Lambert, C. Adjalla, F. Felden, S. Benhayoun, J. P. Nicolas and J. L. Guéant (Vandoeuvre, France) Effect of the buffer solution on the elution order and separation of bis(amidinohydrazones) by micellar electrokinetic capillary chromatography by P. Lukkari, J. Jumppanen, T. Holma and H. Sirén (Helsinki, Finland), K. Jinno (Toyohashi, Japan) and H. Elo and M.-L. Riekkola (Helsinki, Finland) CONTENTS Determination of quaternary ammonium compounds by capillary electrophoresis using direct and indirect UV detection by C. S. Weiss, J. S. Hazlett, M. H. Datta and M. H. Danzer (Racine, WI, USA) Investigation of the properties of novel acrylamido monomers by capillary zone electrophoresis by C. Gelfi, P. de Besi, A. Alloni and P. G. Righetti (Milan, Italy) Investigation of the properties of acrylamide bifunctional monomers (cross-linkers) by capillary zone electrophoresis by C. Gelfi, A. Alloni, P. de Besi and P. G. Righetti (Milan, Italy) Sodium dodecyl sulfate-capillary gel electrophoresis of proteins using non-cross-linked polyacrylamide by D. Wu and F. E. Regnier (West Lafayette, IN, USA) . Assessment of the capabilities of capillary zone electrophoresis for the determination of hippuric and orotic acid in whey by P. A. Tienstra, J. A. M. van Riel, M. D. Mingorance and C. Olieman (Ede, Netherlands) Factors influencing the separation and quantitation of intact glucosinolates and desulphoglucosinolates by micellar electrokinetic capillary chromatography by S. Michaelsen, P. Moller and H. Sorensen (Frederiksberg, Denmark) Analysis of alkylaromatic sulphonates by high-performance capillary electrophoresis by P. L. Desbéne (Evreux, France), C. Rony (Paris, France) and B. Desmaziéres and J. C. Jacquier (Rouen, France) Various approaches to analysis of difficult sample matrices of anions using capillary ion electrophoresis by W. R. Jones and P. Jandik (Milford, MA, USA) . Optimization of detection sensitivity in the analysis of inorganic cations by capillary ion electrophoresis using indirect photo- metric detection by A. Weston and P. R. Brown (Kingston, RI, U SA) and P. Jandik, A. L. Heckenberg and W. R. Jones (Milford, MA, USA) . 5 eR Sarees Determination of phenolic carboxylic acids by micellar electrokinetic capillary chromatography and evaluation of factors affect- ing the method by C. Bjergegaard, S. Michaelsen and H. Sorensen (Frederiksberg, Denmark) . Separation of inositol phosphates by capillary electrophoresis by A. Henshall, M. P. Harrold and J. M. Y. Tso (Sunnyvale, CA, USA) . Chiral separations by capillary electrophoresis using cyclodextrin-containing gels by I. D. Cruzado and Gy. Vigh (College Station, TX, USA) Author Index . . . .