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2003 September thru December

September | October | November/December

SEPTEMBER 2003

A Rapid High-Performance Liquid Chromatographic Method for the Simultaneous Quantitation of Aspirin, Salicylic Acid, and Caffeine in Effervescent Tablets
M. Sawyer and V. Kumar

Online Hydrogen-Deuterium Exchange and a Tandem-Quadrupole Time-of-Flight Mass Spectrometer Coupled with Liquid Chromatography for Metabolite Identification in Drug Metabolism
A.-E.F. Nassar

Liposomal Benznidazole: A High-Performance Liquid Chromatographic Determination for Biodistribution Studies
M.J. Morilla, P.E. Benavidez, M.O. Lopez, and E.L. Romero

Determination of 1,4-Dioxane Impurity Levels in Triton X-100 Raw Material by Gas Chromatography with Mass Spectrometric Detection
M. Poss, T. Couch, A. Odufu, J. McCann, J. Mellon, B. Melnick, and D. Jenke

Development and Validation of a Liquid Chromatographic Method for Monitoring of Process-Related Synthetic Organic Impurities of Profenofos in Technical Products
R. Nageswara Rao, D. Naga Raju, N. Venkateswarlu, B. Vittal Rao, N. Parvathi, A. Manjula, G.N. Reddy, P.B. Gawali, M. Sreekanth, and P. Nageswara Rao

Investigation of Liquid and Gas Chromatography Techniques for Separation of Diastereomers of b-(a-Methylbenzyl) Amino Isobutyric Acid
C.B. Held and D.K. Robbins

Characterization of Phthalides in Ligusticum chuanxiong by Liquid Chromatographic–Atmospheric Pressure Chemical Ionization– Mass Spectrometry
X. Zhang, H. Xiao, Q. Xu, X. Li, J. Wang, and X. Liang

Simultaneous Analyses of Neutral Carbohydrates and Amino Sugars in Freshwaters with HPLC–PAD
X. Cheng and L.A. Kaplan

Measurement Uncertainty of Liquid Chromatographic Analyses Visualized by Ishikawa Diagrams
V.R. Meyer

A Simple and Reliable Semipreparative High-Performance Liquid Chromatography Technique for the Isolation of Marker-Grade Hyperforin from Hypericum perforatum L. Extract
R. Anand, S.C. Puri, N. Verma, G. Handa, R.K. Khajuria, V.K. Gupta, O.P. Suri, and G.N. Qazi


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OCTOBER 2003

Gel and Polymer-Solution Mediated Separation of Biopolymers by Capillary Electrophoresis
A. Guttman

HPLC Separation of Tetracycline Analogues: Comparison Study of Laser-Based Polarimetric Detection with UV Detection
K. Ng and S.W. Linder

Mathematical Models of Solute Retention in Gas Chromatography as Sources of Thermodynamic Data. Part III. Alkylbenzenes as the Test Analytes
K. Ciazynska-Halarewicz and T. Kowalska

A Novel Stationary Phase: Capillary-Channeled Polymer (C-CP) Fibers for HPLC Separations of Proteins
D.K. Nelson and R.K. Marcus

Evaluation and Characterization of a Commercial Immunosorbent Cartridge for the Solid-Phase Extraction of Phenylureas from Aqueous Matrices
L.E. Vera-Avila, L. Rangel-Ordoñez, and R. Covarrubias-Herrera

Multistep Purification of an Antifreeze Protein from Ammopiptanthus mongolicus by Chromatographic and Electrophoretic Methods
W. Wang, L. Wei, and G. Wang

A High-Performance Liquid Chromatographic–Tandem Mass Spectrometric Method for the Determination of Cethromycin (ABT-773) in Human Plasma, Bronchoalveolar Lavage Fluid, and Alveolar Cells
Q. Ren, J.E. Conte, Jr., E. Zurlinden, and E.T. Lin


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November/December 2003

Comprehensive Two-Dimensional Gas Chromatography for Fast Screening of Wash Oils
K. Sun, W. Winniford, J. Griffith, K. Colura, S. Green, M. Pursch, and J. Luong

Speciation of Sulfur-Containing Compounds in Diesel by Comprehensive Two-Dimensional Gas Chromatography
F.C.-Y. Wang, W.K. Robbins, F.P. Di Sanzo, and F.C. McElroy

Two-Dimensional Gas Chromatography Analysis of Components in Fuel and Fuel Additives Using a Simplified Heart-Cutting GC System
J.D. McCurry and B.D. Quimby

Determination of Total and Speciated Sulfur Content in Petrochemical Samples Using a Pulsed Flame Photometric Detector
L. Chambers and M.L. Duffy

GC: A Review of the State-of-the-Art Column Technologies for the Determination of ppm to ppb Levels of Oxygenated, Sulfur, and Hydrocarbon Impurities in C1–C5 Hydrocarbon Streams
J. de Zeeuw, C. Duvekot, J. Peene, P. Dijkwel, and P. Heijnsdijk

Analysis of Low Levels of Oxygen, Carbon Monoxide, and Carbon Dioxide in Polyolefin Feed Streams Using a Pulsed Discharge Detector and Two PLOT Columns
D.B. Wurm, K. Sun, and W.L. Winniford

Innovations in High-Pressure Liquid Injection Technique for Gas Chromatography: Pressurized Liquid Injection System
J. Luong, R. Gras, and R. Tymko

An Automated Transesterification Technique for Quantitation of Acid Precursors of Ester-Based Oils
B. Chawla

A Comparison of Ten Different Methods for the Analysis of Saturates, Olefins, Benzene, Total Aromatics, and Oxygenates in Finished Gasolines
J. Beens, H.T. Feuerhelm, J.-C. Fröhling, J. Watt, and G. Schaatsbergen

2003 Author Index
2003 Title Index
2003 Subject Index
2003 Chromatography Troubleshooting and Problem Solving Index

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