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Titolo:
Measurement of nephrolithiasis urinary markers by capillary electrophoresis
Autore:
Garcia, A; Muros, M; Barbas, C;
Indirizzi:
Univ S Pablo CEU, Fac CC Expt & Tecn, Urbanizac Monteprincipe Ctr, Madrid,Spain Univ S Pablo CEU Madrid Spain Urbanizac Monteprincipe Ctr, Madrid,Spain Hosp Univ Candelaria, Tenerife, Spain Hosp Univ Candelaria Tenerife Spain sp Univ Candelaria, Tenerife, Spain
Titolo Testata:
JOURNAL OF CHROMATOGRAPHY B
fascicolo: 1-2, volume: 755, anno: 2001,
pagine: 287 - 295
SICI:
1387-2273(20010505)755:1-2<287:MONUMB>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEALTHY-SUBJECTS; ORGANIC-ACIDS; CHROMATOGRAPHIC DETERMINATION; PLASMA OXALATE; OXALIC-ACID; CITRATE; MODEL; ASSAY;
Keywords:
oxalate; citrate; oxoacetic acid; 2,3-dihydroxypropanoic acid;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Barbas, C Univ S Pablo CEU, Fac CC Expt & Tecn, Urbanizac Monteprincipe Ctr, Boadilla Monte Km 5-3, Madrid, Spain Univ S Pablo CEU Boadilla Monte Km 5-3 Madrid Spain rid, Spain
Citazione:
A. Garcia et al., "Measurement of nephrolithiasis urinary markers by capillary electrophoresis", J CHROMAT B, 755(1-2), 2001, pp. 287-295

Abstract

A previously developed method for screening organic acidurias by capillaryelectrophoresis has been validated for oxalate and citrate measurement in urine. Sample pretreatment is minimum, just acidification and centrifugation. Detection is by direct UV. Validation parameters of the method can be considered adequate. Response is linear for both analytes in standards and samples. The assayed ranges were 200-1000 mg/l for citrate and 10-200 mg/l for oxalate. Recoveries ranged from 99.4+/-3 to 101.7+/-2.4%, maximum imprecision in oxalate concentration was of 7.6% RSD and limits of detection in samples were 0.67 mg/l for oxalate and 25.9 mg/l for citrate, both lower thanthe measured values in samples. Identification of increased glyoxylic (oxoacetic acid) and glyceric acids (2,3-dihydroxy propanoic) are also includedto facilitate the diagnosis. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 22/01/20 alle ore 12:21:07