
handle: 2183/19257
[Resumen] En este trabajo, se validó un método de dispersión de la matriz en fase sólida (MSPD) para la extracción de nueve triazinas en muestras de trucha. En las condiciones optimizadas, 0.2 g de muestra se dispersaron sobre 2 g de C18 y se transfirieron a un cartucho con ENVI-Carb-II/SAX/PSA (500/500/500 mg). La muestra dispersada se lavó con 10 mL de n-hexano y los analitos se eluyeron con 20 mL de acetato de etilo y 5 ml de acetonitrilo. El extracto se concentró hasta sequedad, se redisolvió en 1 mL de metanol y se inyectó en HPLC-DAD. El método proporcionó una buena exactitud y precisión, cumpliendo así con los requisitos estipulados en la legislación de la Unión Europea.
[Resumo] Neste traballo, validouse un método baseado na dispersión da matriz en fase sólida (MSPD) para a extracción de nove triazinas en mostras de troita. Nas condicións optimizadas, 0.2 g de mostra dispersáronse sobre 2 g de C18 e transferíronse a un cartucho con ENVI-Carb-II/SAX/PSA (500/500/500 mg). A mostra dispersada lavouse con 10 mL de n-hexano e os analitos eluíronse con 20 mL de acetato de etilo e 5 mL de acetonitrilo. O extracto concentrouse ata sequedade, redisolveuse en 1 mL de metanol e inxectouse en HPLC-DAD. O método proporcionou unha boa exactidude e precisión, cumprindo así cos requisitos estipulados na lexislación da Unión Europea.
[Abstract] In this project, Matrix Solid Phase Dispersion (MSPD) has been validated for extraction of nine triazine in trout samples. Under optimised conditions, 0.2 g sample were dispersed using 2 g of C18, and transferred to a cartridge containing ENVI-Carb-II/SAX/PSA (500/500/500 mg). The dispersed sample was washed with 10 mL of n-hexane and analytes were eluted with 20 mL ethyl acetate and 5 mL acetonitrile. The extract was concentrated to dryness, re-constituted with 1 mL methanol and injected into the HPLC-DAD system. The method provided satisfactory accuracy and precision, meeting the requirements stipulated by European Union legislation.
Traballo fin de grao (UDC.CIE). Química. Curso 2014/2015
Herbicidas, Acuicultura, Trucha, Troita, Triazinas
Herbicidas, Acuicultura, Trucha, Troita, Triazinas
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