VOL. 630, NOS. 1+2 JOURNAL OF CHROMATOGRAPHY FEBRUARY 5, 1993 CONTENTS ( Abstracts/Contents Lists published in Analytical Abstracts, Biochemical Abstracts, Biological Abstracts, Chemical Abstracts, Chemical 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) REGULAR PAPERS Column Liquid Chromatography Retention on non-polar adsorbents in liquid—solid chromatography. Effect of grafted alkyl chains by G. Foti, M. L. Belvito, A. Alvarez-Zepeda and E. sz. Kovats (Lausanne, Switzerland) (Received October 26th, 1992) Modeling of the adsorption behavior and the chromatographic band profiles of enantiomers. Behavior of methyl mandelate on immobilized cellulose by F. Charton, S. C. Jacobson and G. Guiochon (Knoxville, TN and Oak Ridge, TN, USA) (Received October 27th, 1992) Characterization of non-linear adsorption properties of dextran-based polyelectrolyte displacers in ion-exchange systems by S. D. Graham, G. Jayaraman and S. M. Cramer (Troy, NY, USA) (Received October Ist, 1992) 37 lon-exchange displacement chromatography of proteins. Dextran-based polyelectrolytes as high affinity displacers by G. Jayaraman, S. D. Graham and S. M. Cramer (Troy, NY, USA) (Received October Ist, 1992) 53 Improved computer algorithm for characterizing skewed chromatographic band broadening. II. Results and comparisons by W. W. Yau, S. W. Rementer, J. M. Boyajian, J. J. DeStefano, J. F. Graff, K. B. Lim and J. J. Kirkland (Wilmington, DE, USA) (Received October 14th, 1992) 69 Functionalized polymer particles for chiral separation by T. Hargitai, P. Reinholdsson and B. Tornell (Lund, Sweden) and R. Isaksson (Uppsala, Sweden) (Received October EE 2 Sie i eae. GA ek ar gage gt Gina la ote gle. a" a ie eee a ate eee gael Ge eee 79 New alumina-based stationary phases for high-performance liquid chromatography. Synthesis by olefin hydrosilation on a silicon hydride-modified alumina intermediate by J. J. Pesek, J. E. Sandoval and M. Su (San Jose, CA, USA) (Received October 16th, 1992) . 95 Examination of some reversed-phase high-performance liquid chromatography systems for the determination of lipophilicity by D. P. Nowotnik, T. Feld and A. D. Nunn (New Brunswick, NJ, USA) (Received September 29th, 1992) 105 Evaluation of silanol-deactivated silica-based reversed phases for liquid chromatography of erythromycin by J. Paesen, P. Claeys, E. Roets and J. Hoogmartens (Leuven, Belgium) (Received October 12th, 1992) 117 Selective complex formation of saccharides with europium(III) and iron(III) ions at alkaline pH studied by ligand-exchange chromatography by M. Stefansson (Uppsala, Sweden) (Received October 20th, 1992) Separation of glucooligosaccharides and polysaccharide hydrolysates by gradient elution hydrophilic interaction chromatogra- phy with pulsed amperometric detection by A. S. Feste and I. Khan (Houston, TX, USA) (Received October 23rd, 1992) Determination of hyaluronic acid by high-performance liquid chromatography of the oligosaccharides derived therefrom as 1-(4-methoxy)phenyl-3-methyl-5-pyrazolone derivatives by K. Kakehi, M. Ueda, S. Suzuki and S. Honda (Osaka, Japan) (Received September 23rd, 1992) 14] Separation and isolation of trace impurities in L-tryptophan by high-performance liquid chromatography by M. W. Trucksess (Washington, DC, USA) (Received October 10th, 1992) 147 Sequence-specific DNA affinity chromatography: application of a group-specific adsorbent for the isolation of restriction endo- nucleases by C. Pozidis, G. Vlatakis and V. Bouriotis (Heraklion, Greece) (Received October 9th, 1992) . 1S] Quantitative analysis of tylosin by column liquid chromatography by E. Roets, P. Beirinckx, I. Quintens and J. Hoogmartens (Leuven, Belgium) (Received September 29th, 1992) 159 Analysis of the explosive 2,4,6-trinitrophenylmethylnitramine (tetryl) in bush bean plants by S. D. Harvey, R. J. Fellows, D. A. Cataldo and R. M. Bean (Richland, WA, USA) (Received September 29th, 1992) 167 (Continued overleaf) Contents (continued) Liquid—gel partitioning using Lipidex in the determination of polychlorinated biphenyls in cod liver oil by C. Weistrand and K. Norén (Stockholm, Sweden) (Received October 19th, 1992) High-performance liquid chromatographic determination of methanesulphinic acid as a method for the determination of hydrox- yl radicals by S. Fukui, Y. Hanasaki and S. Ogawa (Kyoto, Japan) (Received September 24th, 1992) lon chromatography of nitrite and carbonate in inorganic matrices on an octadecyl—poly(vinyl alcohol) gel column using acidic eluents by S. Rokushika, F. M. Yamamoto and K. Kihara (Kyoto, Japan) (Received October 13th, 1992) . Column Liquid Chromatography—Gas Chromatography Use of an open-tubular trapping column as phase-switching interface in on-line coupled reversed-phase liquid chromatography— capillary gas chromatography by H. G. J. Mol, J. Staniewski, H.-G. Janssen and C. A. Cramers (Eindhoven, Netherlands) and R. T. Ghijsen and U. A. Th. Brinkman (Amsterdam, Netherlands) (Received October 12th, 1992) Comparative study of the determination of triacylglycerol in vegetable oils using chromatographic techniques by A. A. Carelli and A. Cert (Seville, Spain) (Received October 20th, 1992) Gas Chromatography Structure—gas chromatographic retention time models of tetra-n-alkylsilanes and tetra-n-alkylgermanes using topological indexes by E. J. Kupchik (Jamaica, NY, USA) (Received October 27th, 1992) Effect of variations in gas chromatographic conditions on the linear retention indices of selected chemical warfare agents by M. Kokko (Helsinki, Finland) (Received September 23rd, 1992) Relationship between Kovats retention indices and molecular connectivity indices of tetralones, coumarins and structurally related compounds by A. C. Arruda, V. E. F. Heinzen and R. A. Yunes (Florianopolis, Brazil) (Received August 18th, 1992) Ambient temperature gas purifier suitable for the trace analysis of carbon monoxide and hydrogen and the preparation of low-level carbon monoxide calibration standards in the field by B. E. Foulger and P. G. Simmonds (Poole, UK) (Received August 7th, 1992) Evaluation of Carboxen carbon molecular sieves for trapping replacement chlorofluorocarbons by S. J. O’Doherty, P. G. Simmonds and G. Nickless (Bristol, UK) and W. R. Betz (Bellefonte, PA, USA) (Received October 29th, 1992) Application of dithiocarbamate resin— metal complexes as stationary phases in gas chromatography by C.-F. Yeh, $.-D. Chyueh, W.-S. Chen, J.-D. Fang and C.-Y. Liu (Taipei, Taiwan) (Received October 20th, 1992) Gas chromatographic analysis of high-molecular-mass polycyclic aromatic hydrocarbons. II. Polycyclic aromatic hydrocarbons with relative molecular masses exceeding 328 by A. Bemgard, A. Colmsjé and B.-O. Lundmark (Solna, Sweden) (Received October 15th, 1992) Simultaneous determination of planar chlorobiphenyls and polychlorinated dibenzo-p-dioxins and -furans in Dutch milk using isotope dilution and gas chromatography-—high-resolution mass spectrometry by J. A. van Rhijn, W. A. Traag, P. F. van de Spreng and L. G. M. Th. Tuinstra (Wageningen, Netherlands) (Received August 19th, 1992) Supercritical Fluid Chromatography Injection of large volumes of aqueous solutions in capillary supercritical fluid chromatography and sample preconcentration by multiple injections by S. Bouissel, F. Erni and R. Link (Basle, Switzerland) (Received September 28th, 1992) Electrophoresis pH gradient simulator for electrophoretic techniques in a Windows environment by E. Giaffreda, C. Tonani and P. G. Righetti (Milan, Italy) (Received October 19th, 1992) Protein and peptide mobility in capillary zone electrophoresis. A comparison of existing models and further analysis by V. J. Hilser, Jr. and G. D. Worosila (Suffern, NY, USA) and S. E. Rudnick (Riverdale, NY, USA) (Received November 2nd, 1992) Capillary electrophoretic protein separations in polyacrylamide-coated silica capillaries and buffers containing ionic surfactants by M. A. Strege and A. L. Lagu (Indianapolis, IL, USA) (Received October 30th, 1992) ............. 337 Determination of the number and relative molecular mass of subunits in an oligomeric protein by two-dimensional electrophore- sis. Application to the subunit structure analysis of rat liver amidophosphoribosyltransferase byT . Yamaoka and K. Yamashita (Ibaraki, Japan) and M. Itakura (Tokushima City, Japan) (Received October 6th, ES a Naren eer er te ee te ge eee a ee eee ee, ee eee ee Separation of drug stereoisomers by capillary electrophoresis with cyclodextrins by T. E. Peterson (Fort Worth, TX, USA) (Received October 21st, 1992)... 2... ...........2.4.. 353 Separation and simultaneous determination of the active ingredients in theophylline tablets by micellar electrokinetic capillary chromatography by Q.-x. Dang and L.-x. Yan (Xian, China) and Z.-p. Sun and D.-k. Ling (Beijing, China) (Received October 20th, 1992) 363 Determination of alkylphosphonic acids by capillary zone electrophoresis using indirect UV detection by G. A. Pianetti, M. Taverna, A. Baillet, G. Mahuzier and D. Baylocq-Ferrier peiegiean Deseienres France) (Received I RS Scns gg a ea a eg glia Pe ool eel Ree Sa Sa eek ee ee Metal ion capillary zone electrophoresis with direct UV detection: determination of transition metals using an 8-hydroxyquino- line-5-sulphonic acid chelating system by A. R. Timerbaev, W. Buchberger, O. P. Semenova and G. K. Bonn (Linz, Austria) (Received August Ith, 1992) . 379 SHORT COMMUNICATIONS Column Liquid Chromatography Glycosaminoglycans and proteins: different behaviours in high-performance size-exclusion chromatography by N. Volpi and L. Bolognani (Modena, Italy) (Received October 28th, 1992)... .........2.2.2.2.2. =. 390 Adsorption losses during extraction and derivatization efficiency by benzoylation of plant putrescine for high-performance liquid chromatographic analysis by M. Z. Hauschild (Lyngby, Denmark) (Received November 2nd, 1992)... ......:..2.2.2.2.4.4. 4. =. 397 | | High-performance liquid chromatographic determination of cardenolides in Digitalis leaves after solid-phase extraction by H. Wiegrebe and M. Wichtl (Marburg/Lahn, Germany) (Received October 27th, 1992) ............ 402 Determination of acidic saponins in crude drugs by high-performance liquid chromatography on octadecylsilyl porous glass by H. Kanazawa, Y. Nagata, Y. Matsushima, M. Tomoda and N. Takai (Tokyo, Japan) (Received November 3rd, 1992) 408 Determination of Lovastatin (mevinolin) and mevinolinic acid in fermentation liquids by R. Kysilka and V. Kfen (Prague, Czechoslovakia) (Received October 23rd, 1992)... ........... =. 415 Simultaneous high-performance liquid chromatographic determination of alterosolanol A, B, C, D, E and F by N. Okamura, A. Yagi, H. Haraguchi and K. Hashimoto (Hiroshima, Japan) (Received November 10th, 1992) .. 418 Isolation and determination of alizarin in cell cultures of Rubia tinctorum and emodin in Dermocybe sanguinea using solid-phase extraction and high-performance liquid chromatography byZ . A. Toth (Budapest, ere and O. Raatikainen, T. Naaranlahti and S. Auriola oe Finland) (Received SN ie gb 8 6 be bh eee ee Se ae Gt hee a ne ree ae ee ae Gas Chromatography Improved procedure for the derivatization and gas chromatographic determination of hydroxycarboxylic acids treated with chloroformates by P. HuSek (Prague, Czechoslovakia) (Received October 9th, 1992) . 2... 2. 2 2 ee ee ee ee ee 429 Preparation of methyl esters of fatty acids with trimethylsulphonium hydroxide —an appraisal by A. H. El-Hamdy and W. W. Christie (Ayr, UK) (Received November 12th, 1992) .........4..2.4. . 438 Electrophoresis Capillary electrophoretic separation of recombinant granulocyte-colony-stimulating factor glycoforms by E. Watson and F. Yao (Thousand Oaks, CA, USA) (Received November 23rd, 1992)... ......4.... 442 BOOK REVIEW Advances in lipid methodology | (edited by W. W. Christie), by A. Kuksis (Toronto, Canada). ............. 447 AUTHOR INDEX ........4.-. ee ee eee