Determination of Putrescine and Tyramine in Fish by Micellar Liquid Chromatography with UV Detection Using Direct Injection
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Altres documents de l'autoria: Chin-Chen, Mei Liang; Bose, Devasish; Esteve-Romero, Josep; Vives-Peris, Vicente; Rambla Alegre, María; Carda-Broch, Samuel
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Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7013
comunitat-uji-handle3:10234/8638
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INVESTIGACIONMetadades
Títol
Determination of Putrescine and Tyramine in Fish by Micellar Liquid Chromatography with UV Detection Using Direct InjectionAutoria
Data de publicació
2011Editor
Bentham Science PublishersISSN
1874-0650Cita bibliogràfica
The Open Analytical Chemistry Journal (2011), vol. 5, p. 22-26Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://benthamscience.com/open/toacj/Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
This paper shows how fish samples could be directly injected into a chromatograph, without any previous extraction, using micellar liquid chromatography, taking as an example the determination of two biogenic amines: ... [+]
This paper shows how fish samples could be directly injected into a chromatograph, without any previous extraction, using micellar liquid chromatography, taking as an example the determination of two biogenic amines: putrescine and tyramine, derivatized with 3,5-dinitrobenzoyl chloride. First, the method has been optimized, using an interpretive model, and the best conditions for analysis were: mobile phase containing 0.15 M SDS-6% (v/v) butanol-pH 7, C18 column (125 x 0.46 mm, 5 μm particle size), UV detection of derivatives set at 260 nm. Second, the method has been validated using spiked samples following the guidelines proposed by the US Food and Drug Administration: linear in the range from 0.5 to 1000 ppm (r2>0.999), detection limits of 30 and 40 ppb for putrescine and tyramine, respectively, a 500 ppb limit of quantification in both cases, intra- and inter-day precision (RSD) below 2%, and accuracy between 99.5% and 102.7%. The method is adequate for routine analysis in the determination of these compounds in fish sauces. [-]
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info:eu-repo/semantics/openAccess
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