VOL. 691, NOS. 1+2 JOURNAL OF CHROMATOGRAPHY A 3 FEBRUARY 1995 CONTENTS (Abstracts /C ontents Lists published in Analytical Abstracts, Biochemical Abstracts, Biological Abstracts, Chemical Abstracts, Chemi- cal Titles, Chromatography Abstracts, Current Awareness in Biological Sciences (CABS), Current Contents/Life Sciences, Current Contents/ Physical, Chemical & Earth Sciences, Deep-Sea Research/Part B: Oceanographic Literature Review, Excerpta Medica, Index Medicus, Mass Spectrometry Bulletin, PASCAL-CNRS, Referativnyi Zhurnal, Research Alert and Science Citation Index) 18TH INTERNATIONAL SYMPOSIUM ON COLUMN LIQUID CHROMATOGRAPHY, MINNEAPOLIS, MN, USA, 8-13 MAY 1994 Foreword by L.D. Bowers (Indianapolis, IN, USA) GENERAL, THEORY AND DETECTION High pH mobile phase effects on silica-based reversed-phase high-performance liquid chromatographic columns by J.J. Kirkland (Newport, DE, USA) and M.A. van Straten and H.A. Claessens (Eindhoven, Netherlands)... 3 Use of chromatographic system peaks for continuous quantitative analysis by N. Mizrotsky, L. Kristol and E. Grushka (Jerusalem, Israel) Microdialysis sampling coupled on-line to fast microbore liquid chromatography by A. Chen and C.E. Lunte (Lawrence, KS, USA) Optical properties of axial-illumination flow cells for simultaneous absorbance-fluorescence detection in micro liquid chromatography by A.A. Abbas and D.C. Shelly (Lubbock, TX, USA) Amperostatic—potentiometric detection for micro high-performance liquid chromatography by A. Siddiqui and D.C. Shelly (Lubbock, TX, USA) Multivariate visualization in the size-exclusion chromatography and pattern recognition of biological samples by R.D. Ricker and L.A. Sandoval (Newport, DE, USA), J.D. Justice (Mountain View, CA, USA) and F.O. Geiser (Glen Mills, PA, USA) SORBENTS, COLUMNS, PROCEDURES CHIRAL SEPARATIONS Characterization of a new reversed-phase chromatographic column on a 2-~m porous microspherical silica gel by H. Moriyama, M. Anegayama, K. Komiya and Y. Kato (Yamaguchi, Japan) Nano-scale design of novel stationary phases to enhance selectivity for molecular shape and size in liquid chromatography by K. Jinno, K. Nakagawa, Y. Saito, H. Ohta, H. Nagashima and K. Itoh (Toyohashi, Japan) and J. Archer and Y.-L. Chen (Folsom, CA, USA) Displacement chromatography in biotechnological downstream processing by R. Freitag and J. Breier (Hannover, Germany) Preparation and use of immunoglobulin-binding affinity supports on Emphaze beads by G.T. Hermanson, G.R. Mattson and R.I. Krohn (Rockford, IL, USA) Effect of resin sulfonation on the retention of polar organic compounds in solid-phase extraction by P.J. Dumont and J.S. Fritz (Ames, IA, USA) Methods and materials for solid-phase extraction by J.S. Fritz, P.J. Dumont and L.W. Schmidt (Ames, IA, USA) Characteristics and applications of a new high-performance liquid chromatography guard column by M. Capparella, W. Foster III, M. Larrousse, D.J. Phillips, A. Pomfret and Y. Tuvim (Milford, MA, USA) . . 141 Reversed-phase high-performance liquid chromatography using enhanced-fluidity mobile phases by Y. Cui and S.V. Olesik (Columbus, OH, USA) Vill CONTENTS Modification of a conventional high-performance liquid chromatography autoinjector for use with capillary liquid chroma- tography (Short communication) by R.C. Simpson (King of Prussia, PA, USA) 163 Solvent modulation in liquid chromatography: extension to serially coupled columns by P.H. Lukulay and V.L. McGuffin (East Lansing, MI, USA) 171 Chiral separation retention mechanisms in high-performance liquid chromatography using bare silica stationary phase and B-cyclodextrin as a mobile phase additive by R.H. Pullen (Atlanta and Marietta, GA, USA), J.J. Brennan (Marietta, GA, USA) and G. Patonay (Atlanta, GA, USA) Laser-based dynamic surface tension detection for liquid chromatography by probing a repeating drop radius by L.R. Lima III and R.E. Synovec (Seattle, WA, USA) Chemometric characterization of Lewis base-modified zirconia for normal phase chromatography by D.A. Whitman, T.P. Weber and J.A. Blackwell (St. Paul, MN, USA) High-performance chiral displacement chromatographic separations in the normal-phase mode. III. Separation of the enantiomers of 5-vinylpyrrolidin-2-one using the Chiralcel-OD stationary phase by P.L. Camacho-Torralba and Gy. Vigh (College Station, TX, USA) CARBOXYLIC ACIDS, PROSTAGLANDINS, LEUKOTRIENES Comparison of the retention of organic acids on alkyl and alkylamide chemically bonded phases by T. Czajkowska and I. Hrabovsky (Princeton, NJ, USA) and B. Buszewski, R.K. Gilpin and M. Jaroniec (Kent, OH, USA) Use of secondary chemical equilibria in liquid chromatography to determine dissociation constants of leukotriene B, and prostaglandin B, by J.E. Hardcastle, M. He, B. Begum and R. Vermillion-Salsbury (Denton, TX, USA) 225 Simultaneous sorption and analytical derivatization on a poiystyrene—divinylbenzene polymer. Preparation of chromophoric and fluorophoric derivatives of the prostaglandins by J.M. Rosenfeld and X. Fang (Hamilton, Canada) 231 STEROIDS Use of particle-loaded membranes to extract steroids for high-performance liquid chromatographic analyses. Improved analyte stability and detection by G.L. Lensmeyer, C. Onsager, I.H. Carlson and D.A. Wiebe (Madison, WI, USA) High-performance liquid chromatographic analysis of human erythrocyte oxysterols as A‘-3-ketone derivatives by J.I. Teng and L.L. Smith (Galveston, TX, USA) PEPTIDES, PROTEINS, ENZYMES High-performance liquid chromatographic determination of sulfated peptides in human hemofiltrate using a radioactivity monitor by A.G. Schepky, P. Schulz-Knappe and W.-G. Forssmann (Hannover, Germany) High-performance liquid chromatography of amino acids, peptides and proteins. CXXXVIII. Adsorption of horse heart cytochrome c onto a tentacle-type cation exchanger by J. Xie, M.-I. Aguilar and M.T.W. Hearn (Clayton, Australia) High-performance liquid chromatography of amino acids, peptides and proteins. CXXXIX. Impact of operating parameters in large-scale chromatography of proteins by Q.-M. Mao, I.G. Prince and M.T.W. Hearn (Clayton, Australia) Compositional analysis of the phenylthiocarbamyl amino acids by liquid chromatography—atmospheric pressure ionization mass spectrometry with particular attention to the cyst(e)ine derivatives by K. Schmeer (Tiibingen, Germany), M. Khalifa, J. Csaszar and G. Farkas (Budapest, Hungary), E. Bayer (Tiibingen, Germany) and I. Molnar-Perl (Budapest, Hungary) CONTENTS Sensitivity and selectivity of the electrochemical detection of the copper(II) complexes of bioactive peptides, and comparison to model studies by rotating ring-disc electrode by J.-G. Chen, S.J. Woltman and S.G. Weber (Pittsburgh, PA, USA) Separation of amino acids, peptides and proteins on molecularly imprinted stationary phases by M. Kempe and K. Mosbach (Lund, Sweden) Separation and analysis of proteins by perfusion liquid chromatography and electrospray ionization mass spectrometry by J.F. Banks, Jr. (Branford, CT, USA) High-performance liquid chromatographic assay of glycosyltransferases using flavonoids as substrate by M. Pace, D. Agnellini, C. Gardana, P.L. Mauri and P.G. Pietta (Milan, Italy) Selectivity optimization of reversed-phase high-performance liquid chromatographic peptide and protein separations by varying bonded-phase functionality by B.E. Boyes (Newport, DE, USA) and D.G. Walker (Vancouver, Canada) Insights into the role of the hydrogen bond and hydrophobic effect on recognition in molecularly imprinted polymer synthetic peptide receptor mimics by I.A. Nicholls, O. Ramstrém and K. Mosbach (Lund, Sweden)