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Titolo:
High-performance liquid chromatography with peroxyoxalate chemiluminescence detection of bisphenol A migrated from polycarbonate baby bottles using 4-(4,5-diphenyl-1H-imidazol-2-yl)benzoyl chloride as a label
Autore:
Sun, Y; Wada, M; Al-Dirbashi, O; Kuroda, N; Nakazawa, H; Nakashima, K;
Indirizzi:
Nagasaki Univ, Grad Sch Pharmaceut Sci, Nagasaki 8528521, Japan Nagasaki Univ Nagasaki Japan 8528521 maceut Sci, Nagasaki 8528521, Japan Nagasaki Univ, Sch Pharmaceut Sci, Nagasaki 8528521, Japan Nagasaki Univ Nagasaki Japan 8528521 maceut Sci, Nagasaki 8528521, Japan Hoshi Univ, Fac Pharmaceut Sci, Shinagawa Ku, Tokyo 142, Japan Hoshi UnivTokyo Japan 142 harmaceut Sci, Shinagawa Ku, Tokyo 142, Japan
Titolo Testata:
JOURNAL OF CHROMATOGRAPHY B
fascicolo: 1, volume: 749, anno: 2000,
pagine: 49 - 56
SICI:
1387-2273(20001110)749:1<49:HLCWPC>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
DETECTION SYSTEM; DERIVATIVES; RESINS; WATER;
Keywords:
polycarbonate bottle; peroxyoxalate chemiluminescence detection; bisphenol A; 4-(4,5-diphenyl-1H-imidazol-2-yl); benzoyl chloride;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Nakashima, K Nagasaki Univ, Grad Sch Pharmaceut Sci, 1-14 Bunkyo Machi, Nagasaki 8528521, Japan Nagasaki Univ 1-14 Bunkyo Machi Nagasaki Japan 8528521 Japan
Citazione:
Y. Sun et al., "High-performance liquid chromatography with peroxyoxalate chemiluminescence detection of bisphenol A migrated from polycarbonate baby bottles using 4-(4,5-diphenyl-1H-imidazol-2-yl)benzoyl chloride as a label", J CHROMAT B, 749(1), 2000, pp. 49-56

Abstract

A highly sensitive and selective high-performance liquid chromatographic method with peroxyoxalate chemiluminescence detection for the determination of bisphenol A at sub-ppb levels is described. Bisphenol A was derivatized with 4-(4,5-diphenyl-1H-imidazol-2-yl)benzoyl chloride and the excess unreacted reagent was removed by a simple solid-phase extraction procedure with recoveries of approximately 60%. The separation was carried out isocratically on an ODS column and the derivatized bisphenol A was detected by peroxyoxalate chemiluminescence. A mixture of bis[2-(3,6,9-trioxadecanyloxycarbonyl)-4-nitrophenyl]oxalate (0.6 mM) and hydrogen peroxide (25.0 mM) dissolvedin acetonitrile was used as a chemiluminescence reagent solution with a mixture of imidazole-HNO3 buffer (40.0 mM, pH 7.0): acetonitrile (17:83, v/v)as a mobile phase. The linear standard curve was obtained over the range from 0.57 (2.5) to 22.8 (100) ppb (nM) (r=0.996) with a detection limit of 0.38 ppb (2.8 fmol on column) at a signal-to-noise ratio of 3. The method was successfully applied to the determination of bisphenol A in hot water in contact with commercially available baby bottle samples. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 07:17:26