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Analysis of Sesquiterpene Lactones by High Performance Liquid Chromatography D ieter Strack, P eter Proksch, and Paul-G erhard G ülz Botanisches Institut der Universität zu Köln, Gyrhofstr. 15, D-5000 Köln 41 Z. Naturforsch. 35 c, 915-918 (1980); received August 1,1980 High Performance Liquid Chromatography (HPLC), Sesquiterpene Lactones, Laurus nobilis High performance liquid chromatography on octyl- and octadecyl-silica (RP- 8 and RP-18) stationary phases offers an efficient and rapid method for analysis of sesquiterpene lactones. A mixture of 1 1

Clin Chem Lab Med 2012;50(6):1075–1078 © 2012 by Walter de Gruyter • Berlin • Boston. DOI 10.1515/cclm-2011-0861 Short Communication Comparison of a commercial urinary neopterin radioimmunoassay with high performance liquid chromatography Angelika Hammerer-Lercher 1, *, Christina Moser 1 , Veronika Leichtfried 2 , Wolfgang Schobersberger 2 , Andrea Griesmacher 1 and Dietmar Fuchs 3 1 Central Institute for Medical and Chemical Laboratory Diagnosis , University Hospital, Innsbruck , Austria 2 Institute for Sports Medicine , Alpine

: International Organization for Standardization. [8] İkiz, A. Ö., Şerbetçioğlu, B., Güneri, E. A., Sütay, S., & Ceryan, K. (1998). Investigation of topical ciprofloxacin ototoxicity in guinea pigs. Acta Otolaryngologica, 118, 808–812. DOI: 10.1080/00016489850182486. [9] Klinsunthorn, N., Petsom, A., & Nhujak, T. (2011). Determination of steroids adulterated in liquid herbal medicines using QuEChERS sample preparation and high-performance liquid chromatography. Journal of Pharmaceutical and Biomedical Analysis, 55, 1175–1178. DOI: 10

and Aharonson, 1967) Quantifi cation of Polyacetylenes in Apiaceous Plants by High-Performance Liquid Chromatography Coupled with Diode Array Detection Maike Kramera, Andrea Mühleisa, Jürgen Conradb, Martin Leitenbergera, Uwe Beifussb, Reinhold Carlea, and Dietmar R. Kammerera,* a Institute of Food Science and Biotechnology, Chair of Plant Foodstuff Technology, Hohenheim University, Garbenstrasse 25, D-70599 Stuttgart, Germany. Fax: ++49-(0) 711-459-24110. E-mail: b Institute of Chemistry, Section Bioorganic Chemistry

chromatography. J Liq Chromatogr and Rel Techol. 1991; 14:3745-54. 9. Yakatan GJ, Tien JY. Quantitation of pyridostigmine in plasma using high-performance liquid chromatography. J Chromatogr. 1979; 164:399-403. 10. Ellin RI, Zvirblis P, Wilson MR. Method for isolation and determination of pyridostigmine and metabolites in urine and blood. J Chromatogr. 1982; 228:235-44. 11. Michaelis HC. Determination of pyridostigmine plasma concentrations by high-performance liquid chromatography. J Chromatogr. 1990; 534:291-4. 12. Abu-Qare AW, Abou-Donia MB. Chromatographic method for the

Reversed Phase High Performance Liquid Chromatography of Essential Oils Dieter Strack, Peter Proksch, and Paul-Gerhard Gülz Botanisches Institut der Universität zu Köln, Gyrhofstr. 15, D-5000 Köln 41 Z. Naturforsch. 35 c, 675-681 (1980); received June 20, 1980 High Performance Liquid Chromatography (HPLC), Essential Oils, Terpenes, Terpenoids, Cistus, Cistaceae A reversed phase high performance liquid chromatographic procedure for the separation of essential oils is described. Applying water-acetonitrile elution systems on octyl and octadecyl- silane

DOI 10.1515/dmdi-2012-0016   Drug Metab Drug Interact 2012; 27(3): 165–170 Pedro Dorado , Fernando de Andr é s , Mar í a Eugenia G. Naranjo , Eva M. Pe ñ as-Lled ó , Idilio Gonz á lez , Antonio P. Gonz á lez , Alfredo de la Rubia and Adri á n L Lerena * High-performance liquid chromatography method using ultraviolet detection for the quantification of aripiprazole and dehydroaripiprazole in psychiatric patients Abstract Background: Aripiprazole (ARI) is an antipsychotic drug that is metabolized to dehydroaripiprazole (DARI) by CYP2D6

variants show no or minimal RBC index changes in carrier status. Thus, identification of Hb variants relies on gel electrophoresis at both alkaline and acid pH, high performance liquid chromatography (HPLC) and capillary electrophoresis (CE). Over 1000 Hb variants have been described ( ). In Guangxi region following Hb variants are common: for α globin chain, Hb Constant Spring (Hb CS) and Hb Westmead (Hb WS) [1]; for β-globin chain, Hb E [2] and Hb New York [3]. Although heterozygotes for Hb New York do not display any clinical

Clin Chem Lab Med 2010;48(4):513–517 2010 by Walter de Gruyter • Berlin • New York. DOI 10.1515/CCLM.2010.105 2010/487 Article in press - uncorrected proof Simultaneous determination of serum tryptophan metabolites in patients with systemic lupus erythematosus by high performance liquid chromatography with fluorescence detection Zhong-Yuan Xiang, Ai-Guo Tang*, Ya-Ping Ren, Qian-Xuan Zhou and Xi-Bo Luo Department of Clinical Laboratory, Second Xiangya Hospital, Central South University, Changsha, P.R. China Abstract Background: To provide a more comprehensive

High Performance Liquid Chromatography Coupled with Radioactivity Detection: A Powerful Tool for Determining Drug Metabolite Profiles in Biological Fluids K.-O. Vollmer, W. Klemisch, and A. von Hodenberg Gödecke Forschungsinstitut, Abteilung Pharmakokinetik und M etabolismus, M ooswaldallee 1—9, D-7800 Freiburg, Bundesrepublik Deutschland Z. Naturforsch. 41c, 115—125 (1986); received July 3/October 11, 1985 Dedicated to Professor Hans Grisebach on the occasion o f his 60th birthday Radioactivity Flow-Through D etector, Coupling o f HPLC with Continuous