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Liquid-chromatographic determination of sarafloxacin residues in channel catfish muscle-tissue

Journal of AOAC International

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, , , , and

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Abstract

A liquid chromatographic method is described for the determination of sarafloxacin hydrochloride residues i n channel catfish (ictalurus punctatus) fillets. Sarafloxacin was extracted from fillet tissue with acetonitrile=water (1 + 1). The extract was centrifuged and the supernatant was partitioned with hexane. The aqueous fraction was filtered through a 0.45 Mum filter and evaporated to dryness. The sample was redissolved with 20% acetonitrile-methanol (3 + 2) and 80% trifluoroacetic acid (0.1%), Centrifuged, and filtered to remove proteins. Samples were analyzed by chromatography with gradient elution on a c18 column and with fluorescence detection (excitation at 280 nm and emission above 389 nm). Mean recoveries ranged from 85.4 To 104%, and relative standard deviations ranged from 1.06 To 5.58% In samples spiked at concentrations of 10.0-863.8 Ng/g. The method detection limit for sarafloxacin was 1.4 Ng/g.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Liquid-chromatographic determination of sarafloxacin residues in channel catfish muscle-tissue
Series title:
Journal of AOAC International
Volume
77
Issue:
4
Year Published:
1994
Language:
English
Publisher:
National Biological Service
Contributing office(s):
Upper Midwest Environmental Sciences Center
Description:
pp. 871-875
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of AOAC International
First page:
871
Last page:
875
Number of Pages:
5