Automated determination of asulam by enhanced chemiluminescence using luminol/peroxidase system | Zendy

Sánchez Francisco García | Zendy; Díaz Aurora Navas | Zendy; Bracho Visitación | Zendy; Aguilar Alfonso | Zendy; Algarra Manuel | Zendy

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Automated determination of asulam by enhanced chemiluminescence using luminol/peroxidase system

Author(s) -

Sánchez Francisco García,

Díaz Aurora Navas,

Bracho Visitación,

Aguilar Alfonso,

Algarra Manuel

Publication year - 2009

Publication title -

luminescence

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.428

H-Index - 45

eISSN - 1522-7243

pISSN - 1522-7235

DOI - 10.1002/bio.1137

Subject(s) - chemiluminescence , luminol , detection limit , relative standard deviation , chemistry , chromatography , tap water , peroxidase , horseradish peroxidase , flow injection analysis , organic chemistry , environmental science , enzyme , environmental engineering

A flow injection system with chemiluminescence detection for the determination of asulam, enhancer of the system luminol–H 2 O 2 –horseradish peroxidase, is proposed. The method shows a moderate selectivity against other pesticides usually present in formulations of herbicides and in water. The procedure was applied to the determination of asulam in tap water samples and a recovery study was carried out in order to validate the method. The obtained results show acceptable recovery values (between 88.3 and 93.9%). The detection limit for asulam was 0.12 ng/mL. The precision of the method expressed as relative standard deviation was 1.55% ( n = 8), at the 19 ng/mL level. Copyright © 2009 John Wiley & Sons, Ltd.

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