The Journal of Chromatographic Science is an international scientific journal providing in-depth information on all chromatography techniques, applications, sample preparation methods, systems problem solving and more. The editorial content focuses on research papers describing practical, preparative applications, and analytical methods relevant to a broad range of analytical laboratory work.

The peer-review process provided by the distinguished members of the Editorial Advisory Board ensures the high quality and integrity of Journal of Chromatographic Science articles. Timely presentation of the latest chromatography developments is ensured through new products, literature, and software, notices of meetings, and problem solving / troubleshooting answers.

CONTENT:
With an emphasis on practical application, articles in the Journal of Chromatographic Science discuss gas chromatography (GC), liquid chromatography (LC, HPLC), thin-layer chromatography (TLC), size-exclusion, supercritical fluid chromatography (SFC), electrophoresis, spectrometry, and hyphenated techniques such as gas chromatography-mass spectrometry (GC-MS), liquid chromatography-mass spectrometry (LC-MS), GC-FTIR and more.

Journal of Chromatographic Science is published 10 times per year in January, February, March, April, May/June, July, August, September, October, November/December. Additional information including abstracts and author guidelines is provided on this web site. The full text of the articles can be found at www.ingenta.com for a fee or is FREE to subscribers.

Monthly Feature: HYPHENATED TECHNIQUES

September 2008

The Determination of Tertiary Dodecyl Mercaptan by Low Thermal Mass Gas Chromatography–Dual Plasma Sulfur Chemiluminescence Detection
Ronda Gras, Jim Luong, Patric Eckerle, and Randy Shearer 665

GC–MS Analysis of Ring and Side Chain Regioisomers of Ethoxyphenethylamines
Tamer Awad, Jack DeRuiter, and C. Randall Clark 671

Ultrasonic assisted SPME Coupled with GC and GC–MS using Pencil Lead as a Fiber for Monitoring the Organic Volatile Impurities of Ceftazidime
Djavanshir Djozana, Abolghasem Jouybanb, and Jamal Norouzia 680

Determination of Phenazopyridine in Human Plasma by GC–MS and its Pharmacokinetics
Kai-jun Li, Qin-hua Chen, Zhuo Zhang, Peng Zhou, Peng Li, Jia Liu, and Jun Zhu 686

A GC–MS Study of the Volatile Organic Composition of Straw and Oyster Mushrooms During Maturity and its Relation to Antioxidant Activity
Zhuo-Min Zhang, Wen-Wei Wu, and Gong-Ke Li 690

Determination of Ranolazine in Human Plasma by Liquid Chromatographic–Tandem Mass Spectrometric Assay
Limei Zhao, Hao Li, Yao Jiang, Riyang Piao, Pengfei Li, and Jingkai Gu 697

LC–APCI-MS–MS Method for the Tissue Distribution of Viaminate After Oral Administrations to Rats
Ling Cao, Feng Zheng, Pengcheng Ma, Wenying Liu, Di Sun, Xuan Chen, Yanwei Lai, and Meng Gou 701

Simultaneous Determination of Sibutramine and N-Di-desmethylsibutramine in Dietary Supplements for Weight Control by HPLC–ESI-MS
Ziqiang Huang, Song Xiao, Dan Luo, Bo Chen, and Shouzhuo Yao 707

Determination of Amino Acids in Urine by Cyclodextrin-Modified Capillary Electrophoresis–Laser-Induced Fluorescence Detection
Takashi Kaneta, Hiromasa Maeda, Mari Miyazaki, Rina Miyake, Hirotomo Izaki, Yuji Sakoda, Shohei Kinoshita, and Totaro Imasaka 712

High-Sensitivity Simultaneous Analysis of Ubiquinol-10 and Ubiquinone-10 in Human Plasma
Aya Hirayama, Hiroshi Kubo, Masashi Mita, Osamu Shirota, and Yorihiro Yamamoto 717

Optimization of Gradient Separation for Chromatographic Fingerprint of Herbal Medicine: A Predictive Model Combined with Grid Search
Xiaoying Yin, Weifeng Yao, and Yuzhu Hu 722

Determination of Tanshinone I in Rat Plasma by High-Performance Liquid Chromatography and its Application to Pharmacokinetic Studies
Wei Du, Yu-Hui Wei, Gang Zhao, Hong-Yan Qin, and Xin-An Wu 730

A Simple High-Performance Liquid Chromatographic Method for the Estimation of Boswellic Acids from the Market Formulations Containing Boswellia serrata Extract
Shailesh A. Shah, Ishwarsinh S. Rathod, Bhanubhai. N. Suhagia, Saurabh S. Pandya, and Vijay K. Parmar 735

Selective On-Line Extraction of Trans-Resveratrol and Emodin from Polygonum cuspidatum Using Molecularly Imprinted Polymer
Xiaolei Zhuang, Xiangchao Dong, Shujuan Ma, and Ti Zhang 739

Preparative High-Performance Liquid Chromatography for the Purification of Natural Acylated Anthocyanins from Red Radish (Raphanus sativus L.)
Yonghong Liu, Nobutoshi Murakami, Lishu Wang, and Si Zhang 743

Simultaneous Determination of Four Andrographolides in Andrographis paniculata Nees by Silver Ion Reversed-Phase High-Performance Liquid Chromatography
Tao Xu, Jian Pan, and Lingli Zhao 747

Determination of Metolcarb and Diethofencarb in Apples and Apple Juice by Solid-Phase Microextraction– High Performance Liquid Chromatography
Xiu-Min Yang, Ou Wang, Ming-Zhao Wang, Yan-Xue Hu, Wei-Ning Li, and Zhi Wang 751

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