Biomaterial Database

High-performance liquid chromatographic determination of amantadine in urine after micelle-mediated pre-column derivatization with 1-fluoro-2,4-dinitrobenzene. 1990

F A van der Horst, and J Teeuwsen, and J J Holthuis, and U A Brinkman

Department of Pharmaceutical Analysis, University of Utrecht, The Netherlands.

Cationic micelles have been used for the derivatization of the anti-Parkinson drug amantadine with the chromophore 1-fluoro-2,4-dinitrobenzene in urine. In the presence of 90 mM cetyltrimethylammonium bromide (CTAB), the conversion of amantadine into its derivative is complete within 4 min at 60 degrees C and pH 11. Such a short reaction time allows a fully automated pre-column derivatization of amantadine in an on-line combination with reversed-phase high-performance liquid chromatography. This cannot be attained when using purely aqueous derivatization mixtures because then the reaction takes some 20 min at the same temperature. Without the use of an internal standard, the repeatability of the automated determination at the 0.5 microgram ml-1 level is ca. 6%, whilst the detection limit is 75 ng ml-1 (S/N = 3). The present study clearly demonstrates that micellar systems can be beneficially used for the on-line precolumn derivatization of amines in urine.

UI	MeSH Term	Description	Entries
D008823	Micelles	Particles consisting of aggregates of molecules held loosely together by secondary bonds. The surface of micelles are usually comprised of amphiphatic compounds that are oriented in a way that minimizes the energy of interaction between the micelle and its environment. Liquids that contain large numbers of suspended micelles are referred to as EMULSIONS.	Micelle
D002593	Cetrimonium Compounds	Cetyltrimethylammonium compounds that have cationic detergent, antiseptic, and disinfectant activities. They are used in pharmaceuticals, foods, and cosmetics as preservatives; on skin, mucous membranes, etc., as antiseptics or cleansers, and also as emulsifiers. These compounds are toxic when used orally due to neuromuscular blockade.	Cetyltrimethylammonium Compounds,Cetrimides,Compounds, Cetrimonium,Compounds, Cetyltrimethylammonium
D002851	Chromatography, High Pressure Liquid	Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed.	Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D004139	Dinitrofluorobenzene	Irritants and reagents for labeling terminal amino acid groups.	DNFB,Fluorodinitrobenzene,1-Fluoro-2,4-dinitrobenzene,1 Fluoro 2,4 dinitrobenzene
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000077286	Cetrimonium	Cetyltrimethylammonium compound whose salts and derivatives are used primarily as topical antiseptics.	1-Hexadecyltrimethylammonium Chloride,CTAB,CTAOH,Cetavlon,Cetrimide,Cetriminium,Cetrimonium Bromide,Cetrimonium Chloride,Cetrimonium Hydroxide,Cetrimonium Iodide,Cetrimonium Methosulfate,Cetrimonium Methyl Sulfate,Cetrimonium Monosulfate,Cetyltrimethylammonium Bromide,Cetyltrimethylammonium Chloride,HTAB Cpd,Hexadecyl Trimethyl Ammonium Bromide,Hexadecyl(trimethyl)azanium,Hexadecyltrimethylammonium Bromide,Hexadecyltrimethylammonium Octylsulfonate,Octylsulfonate, Hexadecyltrimethylammonium
D000547	Amantadine	An antiviral that is used in the prophylactic or symptomatic treatment of influenza A. It is also used as an antiparkinsonian agent, to treat extrapyramidal reactions, and for postherpetic neuralgia. The mechanisms of its effects in movement disorders are not well understood but probably reflect an increase in synthesis and release of dopamine, with perhaps some inhibition of dopamine uptake.	1-Aminoadamantane,Adamantylamine,Adekin,Aman,Amanta,Amanta-HCI-AZU,Amanta-Sulfate-AZU,Amantadin AL,Amantadin AZU,Amantadin Stada,Amantadin-neuraxpharm,Amantadin-ratiopharm,Amantadina Juventus,Amantadina Llorente,Amantadine Hydrochloride,Amantadine Sulfate,Amixx,Cerebramed,Endantadine,Gen-Amantadine,Infecto-Flu,Infex,Mantadix,Midantan,PMS-Amantadine,Symadine,Symmetrel,Viregyt,Wiregyt,tregor,1 Aminoadamantane,AL, Amantadin,AZU, Amantadin,Amanta HCI AZU,Amanta Sulfate AZU,AmantaHCIAZU,AmantaSulfateAZU,Amantadin neuraxpharm,Amantadin ratiopharm,Amantadinneuraxpharm,Amantadinratiopharm,Gen Amantadine,GenAmantadine,Hydrochloride, Amantadine,Infecto Flu,InfectoFlu,Juventus, Amantadina,Llorente, Amantadina,PMS Amantadine,PMSAmantadine,Stada, Amantadin,Sulfate, Amantadine
D013696	Temperature	The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.	Temperatures