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Titolo:
Application of a novel micro-injector in the determination of indole derivatives in the rat pineal gland by capillary electrophoresis with electrochemical detection
Autore:
Chen, G; Cheng, JS; Ye, JN;
Indirizzi:
E China Normal Univ, Dept Chem, Shanghai 200062, Peoples R China E China Normal Univ Shanghai Peoples R China 200062 062, Peoples R China Fudan Univ, Ctr Med, Dept Chem, Natl Key Lab Med Neurobiol, Shanghai 200030, Peoples R China Fudan Univ Shanghai Peoples R China 200030 nghai 200030, Peoples R China Fudan Univ, Ctr Med, Dept Med Neurobiol, Natl Key Lab Med Neurobiol, Shanghai 200030, Peoples R China Fudan Univ Shanghai Peoples R China 200030 nghai 200030, Peoples R China
Titolo Testata:
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY
fascicolo: 7, volume: 370, anno: 2001,
pagine: 930 - 934
SICI:
0937-0633(200108)370:7<930:AOANMI>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE LIQUID-CHROMATOGRAPHY; ZONE ELECTROPHORESIS; PRECOLUMN DERIVATIZATION; FLUORESCENCE DETECTION; MASS-SPECTROMETRY; PASTE ELECTRODE; MELATONIN; PLASMA; VOLTAMMETRY; SAMPLES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Ye, JN E China Normal Univ, Dept Chem, Shanghai 200062, Peoples R China E China Normal Univ Shanghai Peoples R China 200062 oples R China
Citazione:
G. Chen et al., "Application of a novel micro-injector in the determination of indole derivatives in the rat pineal gland by capillary electrophoresis with electrochemical detection", FRESEN J AN, 370(7), 2001, pp. 930-934

Abstract

A novel micro-injector has been fabricated for capillary electrophoresis (CE). It was successfully used for the determination of some indole derivatives for example melatonin (MT), serotonin (5-HT), tryptophan (Tip), and 5-hydroxy-tryptophane (5-HTrp) in the rat pineal gland by capillary electrophoresis with electrochemical detection (CE-EC). CE was performed in 0.20 mol L-1 phosphate buffer (pH 8.0). The compounds investigated can be well separated and detected within 15 min. The working electrode used was a 300-mum diameter carbon electrode positioned opposite the outlet of the capillary. The relationship between peak current and analyte concentration was highly linear in the range from 0.10 to 500 mu mol L-1; detection limits (S/N = 3) were 0.03-0.13 mu mol L-1. The proposed method has been successfully used to analyze real biological samples.

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Documento generato il 02/04/20 alle ore 12:02:36