2007 September thru December

September | October | November/December

SEPTEMBER 2007

Gas Chromatography–Mass Spectrometry Analysis of Regioisomeric Ring Substituted Methoxy Methyl Phenylacetones
Tamer Awad, Jack DeRuiter, and C. Randall Clark

Chromatographic and Mass Spectral Studies on Methoxy Methyl Methamphetamines Related to 3,4-Methylenedioxymethamphetamine
Tamer Awad, Jack DeRuiter, and C. Randall Clark

GC–MS Analysis of Acylated Derivatives of the Side-Chain Regioisomers of 4-Methoxy-3-Methyl-Phenethylamines Related to Methylenedioxymethamphetamine
Tamer Awad, C. Randall Clark, and Jack DeRuiter

Determination of Ultra Trace Levels of 1,2-Dichloroethane in Air by Sample Enrichment Micromachined Gas Chromatography–Differential Mobility Detection
Frances Sutherland, Ronda Gras, Jim Luong, Hernan Cortes, and Jos Curvers

Mathematical Models of Solute Retention in Gas Chromatography as Sources of Thermodynamic Data. Part IV. Aliphatic Alcohols as the Test Analytes
Katarzyna Ciazynska–Halarewicz, Monika Helbin, Pawe? Korzenecki, and Teresa Kowalska

The Influence of Mobile Phase Demixion on Thin-Layer Chromatographic Enantioseparation
of Ibuprofen and Naproxen
Mieczyslaw Sajewicz, Kryzsztof Kaczmarski, Monika Gontarska, Sylwia Kiszka, and Teresa Kowalska

Improved High-Performance Liquid Chromatography–Diode Array Detection Method for the Determination of Phenolic Compounds in Leaves and Peels From Different Apple Varieties
Maddalena Kindt, M. Cristina Orsini, and Barbara Costantini

Comparison of Two Quantitation Methods in HPLC: Standardless Versus Calibration with External Standards. Application to the Analysis of Amino Acids in Fruit Juices
A. Versari, G.P. Parpinello, and A. Fabiani

Development of a Rapid Normal-Phase LC–Positive Ion APCI–MS Method for Simultaneous Detection and Quantitation of Cholesterol, Androst-4-ene-3,17-dione, and Androsta-1,4-diene-3,17-dione
Ravi K. Khajuria, Vikram Bhardwaj, Rajinder K. Gupta, Preeti Sharma, Priti Somal, Pradeep Mehta, and Ghulam N. Qazi

Molecular Weight Distributions of Industrially-Produced Poly-(e-Caprolactams) by Gel Permeation Chromatography
Elena Mateos, Vicente L. Cebolla, Luis Membrado, Elena Piera, and Miguel A. Caballero

Validated HPTLC Method for Simultaneous Estimation of Levofloxacin Hemihydrate and Ornidazole in Pharmaceutical Dosage Form
S.B. Chepurwar, A.A. Shirkhedkar, S.B. Bari, R.A. Fursule, and S.J. Surana

Development of HPTLC–UV Absorption Densitometry Method for the Analysis of Alprazolam and Sertraline in Combination and Its Application in the Evaluation of Marketed Preparations
K. Venkateswarlu, R.K. Venisetty, N.R. Yellu, S. Keshetty, and M.G. Pai

Chiral Separation of Two Pairs of Enantiomers of Tadalafil by High-Performance Liquid Chromatography
Wenhui Gao, Zhefeng Zhang, Zhiwei Li, and Guijian Liang

Determination and Pharmacokinetics of 6,7-Dimethoxycoumarin in Rat Plasma after Intragastric Administration of Different Decoctions of Yinchenhao Tang
Zhi-guo Yu, Qian Wang, Ke Li, Ying-qi Li, and Xiao-xia Gao

Quantitative and Qualitative Determination of Liuwei Dihuang Tablets by HPLC–UV-MS–MS
Xinfeng Zhao, Yue Wang, and Yuqing Sun

OCTOBER 2007

Capillary Electrophoresis in Pharmaceutical Analysis: A Survey on Recent Applications
Leena Suntornsuk 559

Evaluation of Polymeric Methacrylate-based Monoliths in Capillary Electrochromatography for their Potential to Separate Pharmaceutical Compounds
Debby Mangelings, Indiana Tanret, Vanessa Meert, Sebastiaan Eeltink, Peter J. Schoenmakers, Wim Th. Kok, and Yvan Vander Heyden 578

Application of Protein–Liposome Conjugate as a Pseudo-Stationary Phase in Capillary Electrophoresis
Jing Jiang, Lina Geng, Feng Qu, Aiqin Luo, Hong Li, and Yulin Deng 587

Separation of Chlorins and Carotenoids in Capillary Electrophoresis
Gamze Kavran Belin and Fazil O. Gülaçar 593

Separation and Determination of Flavonoids in Ixeridium gracile by Capillary Electrophoresis
Yu Zhang, Liang Zhao, and Yan-Ping Shi 600

Enantiomer Separation of the Four Diastereomers of Guaiacyl Glycerol from Hydnocarpus annamensis by Capillary Electrophoresis with HP-b-CD as a Chiral Selector
Yi Liu, Haiming Shi, Zhe Sun, Xiaomei Ling, and Pengfei Tu 605

Simultaneous Determination of Active Ingredients in Ethnomedicine Gaultheria leucocarpa var. yunnanensis and its Medicinal Preparation by Capillary Electrophoresis with Electrochemical Detection
Yikun Zeng, Zhuxing Tang, Qingjiang Wang, Pingang He, and Yuzhi Fang 610

Drug Monitoring: Simultaneous Analysis of Lamotrigine, Oxcarbazepine, 10-Hydroxycarbazepine, and Zonisamide by HPLC–UV and a Rapid GC Method Using a Nitrogen-Phosphorus Detector for Levetiracetam
Elizabeth Greiner-Sosanko, Spiros Giannoutsos, Darla R. Lower, Mohamed A. Virji, and Matthew D. Krasowski 616

Thermostability Testing and Degradation Profiles of Doxycycline in Bulk, Tablets, and Capsules by HPLC
Rade Injac, Vukosava Djordjevic-Milic, and Branislava Srdjenovic 623

Non-Intuitive Separation of Vanilla Compounds Using Rapid Resolution High-Performance Liquid Chromatography
Jean-Paul Larcinese, Fabrice Avaltroni, and Valéry Normand 629

November/December

Programmed Automation of Modulator Cold Jet Flow for Comprehensive Two-Dimensional Gas Chromatographic Analysis of Vacuum Gas Oils
Wayne Rathbun 636

Towards Comprehensive Hydrocarbons Analysis of Middle Distillates by LC–GCxGC
Frédérick Adam, Fabrice Bertoncini, Didier Thiébaut, Sébastien Esnault, Didier Espinat, and M.C. Hennion 643

Analysis of Biodiesel/Petroleum Diesel Blends with Comprehensive Two-Dimensional Gas Chromatography
John V. Seeley, Stacy K. Seeley, Elise K. Libby, and James D. McCurry 650

A Comprehensive Two-Dimensional Gas Chromatography Method for Analyzing Extractable Petroleum Hydrocarbons in Water and Soil
Stacy K. Seeley, Steven V. Bandurski, Robert G. Brown, James D. McCurry, and John V. Seeley 657

Capillary Flow Technology with Multi-Dimensional Gas Chromatography for Trace Analysis of Oxygenated Compounds in Complex Hydrocarbon Matrices
J. Luong, R. Gras, G. Yang, L. Sieben, and H. Cortes 664

A Unified Approach for the Measurement of Individual or Total Volatile Organic Sulfur Compounds in Hydrocarbon Matrices by Dual-Plasma Chemiluminescence Detector and Low Thermal Mass Gas Chromatography
Ronda Gras, Jim Luong, and Randy Shearer 671

Application of ICP–MS as a Multi-Element Detector for Sulfur and Metal Hydride Impurities in Hydrocarbon Matrices
William M. Geiger, Shona McSheehy, and Martin J. Nash 677

Physical and Chemical Characterization of Petroleum Products by GC–MS
A. Mendez*, R. Meneghini, and J. Lubkowitz 683

Determination of Total Biodiesel Fatty Acid Methyl, Ethyl Esters, and Hydrocarbon Types in Diesel Fuels by Supercritical Fluid Chromatography–Flame Ionization Detection
John W. Diehl and Frank P. DiSanzo 690

A LC–Electrospray Tandem MS Method for the Analysis of Naltrexone in Canine Plasma Employing a Molecular Model to Demonstrate the Absence of Internal Standard Deuterium Isotope Effects
Sunil S. Iyer, Glen E. Kellogg, and H. Thomas Karnes 694

Optimization of a High-Performance Liquid Chromatography Method for the Separation and Identification of Six Different Classes of Phenolics
Dhirendra P. Singh, R. Govindarajan, Anakshi Khare, and Ajay K. S. Rawat 701

Development and Validation of a TLC-Densitometric Method for the Simultaneous Quantitation of Strychnine and Brucine from Strychnos spp. and its Formulations
Kamlesh Dhalwal, Vaibhav M. Shinde*, Ajay G. Namdeo, Kakasaheb R. Mahadik, and Shivajirao. S. Kadam 706

Thiophilic Interaction Chromatography of Mammalian and Avian Transferrins
James T. MacKenzie, Thamarapu Srikrishnan*, and Eugene Sulkowski 710

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