LC*GC

December 97
November 97
October 97
September 97
August 97
July 97
June 97
May 97
April 97
March 97
February 97
January 97
1995 - 1996

COLUMNS

• Sample Prep Perspectives: Sample Preparation and Solid-Phase Extraction
  Ronald E. Majors and Douglas E. Raynie
• LC Troubleshooting: Reproducibility Problems
  John W. Dolan
• Validation Viewpoint: Laboratory Notebook Documentation
  Ira Krull and Michael Swartz

ARTICLES

• Optimizing Solid-Phase Microextraction-Gas Chromatographic Injections
  Pius Okeyo and Nicholas H. Snow

INDEX

• 1997 Index of Authors
  
• 1997 Index of Subjects
  

DEPARTMENTS

• Peaks of Interest
• Meeting Preview - Fifth International Symposium on Hyphenated Techniques in Chromatography and Hyphenated Chromatographic Analyzers
• Application Notes
• Products
• Literature
• Calendar
• Classified Directory
• Short Courses
• Advertisers Index

COLUMNS

• Column Watch: Current Trends in HPLC Column Usage
  Ronald E. Majors
• LC Troubleshooting: A Valuable Source of Help
  John W. Dolan
• GC Connections: Gas Management Systems for GC, Part II - Gas Delivery Systems for Multiple Gas Chromatograph Systems
  Reginald J. Bartram
• CE Currents: Capillary Electrophoresis Buffers - Approaches to Improving Their Performance
  Mark E.P. Hows, Luwiza N. Alfazema, and David Perrett

ARTICLES

• Past Accomplishments, Present Status, and Future Challenges of Thin-Layer Chromatography
  Huba Kalász, Leslie S. Ettre, and Mária Báthori
• Determination of Residual Solvents in Transdermal Drug-Delivery Systems by Gas-Liquid Chromatography and Headspace Sampling
  Peter Klaffenbach, Clemens Brüse, Carsten Coors, Detlev Kronenfeld, and Hans-Georg Schulz
• Using a Jet Separator and Cryofocusing to Obtain Improved Results in Volatile Organic Compound Analysis
  Jim McIntire

DEPARTMENTS

• Peaks of Interest
• Bookshelf
• Application Notes
• Products
• Literature
• Calendar
• Classified Directory
• Employment Opportunities
• Short Courses
• Advertisers Index

COLUMNS

• Column Watch: Fast Chromatography and Nonporous Silica
  Timothy J. Barder, Pamela J. Wohlman, Cary Thrall, and Phil D. DuBois
• LC Troubleshooting: Baseline Problems - A Case Study
  Kelly L. Christianson and John W. Dolan
• Data File: Performing Chromatographic Calculations Using a Spreadsheet
  Glenn I. Ouchi
• Questions of Quality: How Good Is Your Method?
  Bengt-Arne Persson, Jürgen Vessman, and R.D. McDowall

ARTICLES

• The Role of Particle-Beam LC-MS in Separation Development
  Craig Dorschel
• Capillary LC Using Conventional HPLC Instrumentation
  R. Grimm, M. Serwe, and J.-P. Chervet

DEPARTMENTS

• Peaks of Interest
• In Memory: H. Michael Widmer
• Meeting Preview: 17th International Symposium on the Separation of Proteins, Peptides, and Polynucleotides - ISPPP +97
• Application Notes
• Products
• Literature
• Classified Directory
• Calendar
• Short Courses
• Advertisers Index

COLUMNS

• Sample Prep Perspectives: The Use of Restricted-Access Media in HPLC, Part II - Applications
  Anne Rudolphi and K.-S. Boos
• LC Troubleshooting: Retention Time Problems
  John W. Dolan
• GC Connections: Gas Management Systems for GC, Part I - Basic Decisions
  Reginald J. Bartram
• Validation Viewpoint: Method Validation Protocol - Required Data Elements, Method Transfer, and Revalidation
  Ira Krull and Michael Swartz

ARTICLES

• Development of an Interface for Directly Coupled Solid-Phase Extraction and GC-MS Analysis
  Sjef àllers, Mark van Lieshout, Hans-Gerd Janssen, and Carel A. Cramers
• A Chromatographic Test Procedure for Reversed-Phase HPLC Column Evaluation
  H. Engelhardt, M. Arangio, and T. Lobert
• On-Line Cleaning HPLC-UV-MS: A Tool for Analyzing New Anti-HIV Drugs in Biological Media
  Isabelle Lefebvre, Alain Pompon, Gilles Valette, Christian PÄrigaud, Gilles Gosselin, and Jean-Louis Imbach

DEPARTMENTS

• Letter to the Editor
• Peaks of Interest
• Application Notes
• Bookshelf
• Products
• Literature
• Calendar
• Short Courses
• Classified Directory
• Advertisers Index

BUYERS+ GUIDE

Product Index

Products & Services

• Liquid Chromatography
• Gas Chromatography
• Supercritical Fluid Chromatography
• Thin-Layer Chromatography
• Electrophoresis
• Reagents, Solvents, Standards
• Data Handling, Calibration
• Chromatography Services
• Sample Preparation and Handling

Manufacturers Directory

Cyber Directory

Product Catalogs

Short Courses

Advertisers Index

Classified Directory

COLUMNS

• Sample Prep Perspectives: The Use of Restricted-Access Media in HPLC, Part I - Classification and Review
  K.-S. Boos and Anne Rudolphi
• LC Troubleshooting: Method Development, Peak Distortion, and Interfering Peaks
  John W. Dolan
• GC Connections: Column Bleed and Computer-Controlled Pneumatics
  John V. Hinshaw
• Coupling Matters: Principles and Practice of Immunodetection in Fluorescent Immunoassay and HPLC Analysis
  I.S. Krull, B.-Y. Cho, R. Strong, and M. Vanderlaan

ARTICLES

• Advances Toward the Routine Use of Capillary Electrochromatography
  Rajeev Dadoo, Chao Yan, Richard N. Zare, Deon S. Anex, David J. Rakestraw, and Gary A. Hux
• Current Analytical Laboratory Inspection Trends
  

DEPARTMENTS

• Peaks of Interest
• Meeting Report: Supercritical Fluid Chromatography at Pittcon +97
• Application Notes
• Products
• Literature
• Calendar
• Classified Directory
• Short Courses
• Advertisers Index

COLUMNS

• Sample Prep Perspectives: Automated Column Selection and Switching Systems for HPLC
  W.S. Letter
• LC Troubleshooting: Maintaining Autosampler Performance
  John W. Dolan
• Data File: Adding Features to the Control Charting System
  Glenn I. Ouchi
• Questions of Quality: Where Did That Peak Come From?
  R.D. McDowall
• Validation Viewpoint: Introduction: National and International Guidelines
  Ira Krull and Michael Swartz

ARTICLES

• Recent Applications of LC-MS Techniques for the Structure Identification of Drug Metabolites and Related Compounds
  Mike S. Lee, Edward H. Kerns, Mark E. Hail, Jinping Liu, and Kevin J. Volk
• Capillary Electrophoresis in Nonaqueous Media: An Overview
  Istvçn E. Valkù, Heli SirÄn, and Marja-Liisa Riekkola

DEPARTMENTS

• Peaks of Interest
• Meeting Preview: HPLC +97 - 21st International Symposium on High Performance Liquid Phase Separations and Related Techniques
• Bookshelf
• Application Notes
• Products
• Literature
• Calendar
• Classified Directory
• Short Courses
• Advertisers Index

COLUMNS

• Column Watch: The Separation of Chiral Compounds by GC, SFC, and CE
  Ronald E. Majors
• LC Troubleshooting: Anticipating Problems with a New Method
  John W. Dolan
• GC Connections: New GC Instruments and Accessories at the 1997 Pittsburgh Conference
  John V. Hinshaw
• CE Currents: Reader Survey: The Current Status of Capillary Electrophoresis
  K.D. Altria and S.M. Bryant

ARTICLES

• Advancing Phytochemical Development: Characterization of Plant Extract Isoflavonoids Using LC-MS
  Michael P. Balogh
• The Use of Pentachlorophenol as an Eluent Preservative in the Ion Chromatographic Determination of Transition Metals
  A.V. Pirogov, S.N. Semenova, O.N. Obrezkov, and O.A. Shpigun

DEPARTMENTS

• Letter to the Editor
• Peaks of Interest
• Bookshelf
• Application Notes
• Products
• Literature
• Calendar
• Short Courses
• Classified Directory
• Advertisers Index

COLUMNS

• Column Watch: New Chromatography Columns and Accessories at the 1997 Pittsburgh Conference, Part II
  Ronald E. Majors
• LC Troubleshooting: Air: Poison for Liquid Chromatographs
  John W. Dolan, Daniel H. Marchand, and Shannon A. Cahill
• GC Connections: Readers¹ Questions about Sample Carryover, Quantitative Errors, and Noise
  John V. Hinshaw
• Data File: Generating Control Charts with a Spreadsheet Program
  Glenn I. Ouchi
• Questions of Quality: How Raw Are Your Data?
  R.D. McDowall

ARTICLES

• Enantiomer Separation by Supercritical Fluid Chromatography on Packed Columns
  Christian Wolf and William H. Pirkle
• Evaluation of Advanced Silica Packings, Part II: Application of Nonporous Silica Particles in HPLC
  Michael Hanson and Klaus K. Unger

DEPARTMENTS

• Peaks of Interest
• Meeting Preview: 45th American Society for Mass Spectrometry Conference on Mass Spectometry and Allied Topics
• Application Notes
• Products
• Literature
• Calendar
• Classified Directory
• Employment Opportunities
• Short Courses
• Advertisers Index

COLUMNS

• Column Watch: New Chromatography Columns and Accessories at the 1997 Pittsburgh Conference, Part I
  Ronald E. Majors
• LC Troubleshooting: The System Logbook
  John W. Dolan
• Coupling Matters: The Chromatographic Side of Isotope Ratio Mass Spectrometry - Pitfalls and Answers
  Wolfram Meier-Augenstein

ARTICLES

• Reduction of Total Analysis Time in Gradient Elution, Reversed-Phase Liquid Chromatography
  Deanna L. Warner and John G. Dorsey
• Automatic Thermal Desorption in GC and GC-MS Analysis of Volatile Food Components Using Conventional and Chiral Capillary Columns
  J.L. Esteban, E. Valero, E. Miranda, M.I. Jimenez, I. Martinez-Castro, J. Sanz, and R. Morales

DEPARTMENTS

• Peaks of Interest
• Meeting Preview: 19th International Symposium on Capillary Chromatography and Electrophoresis
• Application Notes
• Products
• Literature
• Calendar
• Advertisers Index
• Classified Directory

COLUMNS

• Column Watch: A Proposal for a Universal Column Quality Certificate for HPLC Columns, by Gerhard Wieland, Karin Cabrera, and Wolfgang Eymann
• LC Troubleshooting: Pump Preventive Maintenance, by John W. Dolan
• GC Cconnections: The Top Ten Habits of Successful Gas Chromatographers, by John V. Hinshaw
• Data File: Custom Data Analysis Using a Spreadsheet, by Glenn I. Ouchi
• Questions of Quality: Is Your Chromatograph Really Qualified?, by C. Burgess and R.D. McDowall

ARTICLES

• Selectivity Control in Reversed-Phase HPLC Method Development - Varying Temperature and Solvent Strength to Optimize Separations, by L.R. Snyder, J.W. Dolan, I. Molnar, and N.M. Djordjevic
• A Novel Polymeric Reversed-Phase Sorbent for Solid-Phase Extraction, by Edouard S.P. Bouvier, Donna M. Martin, Pamela C. Iraneta, Mark Capparella, Yung-Fong Cheng, and Dorothy J. Phillips
• Evaluation of Advanced Silica Packings, Part I: Synthesis and Characterization of Nonporous Silica Particles for HPLC, by Michael Hanson and Klaus K. Unger
• Back to Basics: Multiangle Light Scattering Combined with HPLC, by Philip J. Wyatt

DEPARTMENTS

• From the Editor
• Letter to the Editor
• Peaks of Interest
• Application Notes
• Products
• Pittcon Product Showcase
• Calendar
• Classified Directory
• Short Courses
• Advertisers Index

COLUMNS

• Column Watch: Method Development Strategies in Capillary Electrophoresis, by David Heiger, Ronald E. Majors, and Raymond A. Lombardi
• LC Troubleshooting: Method Quality, Standardization, and Peak Shape, by John W. Dolan
• Coupling Matters: Sophisticated Separation Methods and the Oil Industry, by Peter Schoenmakers, Jan Blomberg, and Sandra Kerkvliet
• CE Currents: The Care and Maintenance of CE Capillaries, by K.D. Altria, S.M. Bryant, B.J. Clark, and M.A. Kelly

ARTICLES

• Investigation of 123 Chiral Drugs by Cyclodextrin-Modified Capillary Electrophoresis, by Bingcheng Lin, Xiaofeng Zhu, Bernhard Koppenhoefer, and Ulrich Epperlein
• Automated SPE and Tandem MS without HPLC Columns for Quantifying Drugs at the Picogram Level, by Gary D. Bowers, Caroline P. Clegg, Stephen C. Hughes, Andrew J. Harker, and Simon Lambert
• Validation of Computerized Analytical Systems, Part V: Retrospective Evaluation and Validation of Existing Systems, by Ludwig Huber

DEPARTMENTS

• Peaks of Interest
• Application Notes
• Products
• Literature
• Calendar
• Short Courses
• Classified Directory
• Employment Opportunities
• Advertisers Index