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Recent Posts
- Assessing human exposure to pesticides and mycotoxins: optimization and validation of a method for multianalyte determination in urine samples.
- Capillary electrophoresis tandem mass spectrometry to determine multiclass cyanotoxins in reservoir water and spinach samples.
- Determination of bile acids in serum of pigs exposed to polychlorinated biphenyls by liquid chromatography-mass spectrometry.
- Mycotoxin occurrence in milk and durum wheat samples from Tunisia using dispersive liquid–liquid microextraction and liquid chromatography with fluorescence detection.
- Deeper insights into the effects of low dietary levels of polychlorinated biphenyls on pig metabolism using gas chromatography-high resolution mass spectrometry metabolomics.
Tags
Author Archives: fqm302
Simple methodology for the determination of mycotoxins in pseudocereals, spelt and rice
Nowadays the interest and consumption of pseudocereals is increasing due to their nutritional properties. Like cereals and oilseeds, pseudocereal seeds are susceptible to fungal growth and mycotoxin contamination; however these matrices have received little attention in literature. A sensitive, simple … Continue reading
Posted in Mass spectrometry, Pseudocereals, QuEChERS, Rice, Spelt, UHPLC
Tagged MS
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Alternative sample treatments for the determination of sulfonamides in milk by HPLC with fluorescence detection
This paper presents two sample treatments, dispersive liquid–liquid microextraction (DLLME) and QuEChERS for the determination of 9 sulfonamides, regulated by the EU Council in milk samples. Both methods represent useful alternatives to conventional procedures based mainly in solid-phase extraction, in … Continue reading
Posted in DLLME, Fluorescence, Milk, QuEChERS, Sulfonamides
Tagged HPLC
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Ion-paired extraction of cephalosporins in acetone prior to their analysis by capillary liquid chromatography in environmental water and meat samples
Ion-pair extraction of cephalosporins from aqueous solution into acetone by the addition of ammonium sulfate to a 1:2 (v/v) acetone–water solvent was carried out followed by their determination using reversed-phase capillary liquid chromatography. The analytes included are cephoperazone, cefquinome, cephalexin, … Continue reading
Posted in Capillary HPLC, Cephalosporins, Meat, SALLE, UV-vis, Water
Tagged UV-Vis, µHPLC
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Micotoxinas: aproximaciones analíticas y metabolómicas
Las micotoxinas son metabolitos secundarios tóxicos, de composición variada, producidos por diferentes hongos. Suelen contaminar alimentos, piensos, o las materias primas utilizadas para su elaboración, pudiendo afectar a la salud tanto de humanos como de animales. Debido a su gran … Continue reading
Posted in Theses
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A new approach in sample treatment combined with UHPLC-MS/MS for the determination of multiclass mycotoxins in edible nuts and seeds
A sensitive, simple and rapid method for the determination of fourteen mycotoxins in nuts and seeds (including almonds, peanuts, sunflower seeds, pumpkin seeds, walnuts, macadamia nuts, pistachios, hazelnuts and pine nuts) has been developed using ultra-high performance liquid chromatography coupled … Continue reading
Avances en la determinación de residuos de herbicidas y cefalosporinas en muestras ambientales y alimentarias mediante técnicas miniaturizadas.
En esta Tesis se han desarrollado diferentes métodos analíticos para la determinación de residuos de herbicidas y cefalosporinas, en alimentos y muestras ambientales. Para ello, se han evaluado diferentes técnicas separativas miniaturizadas, como la electroforesis capilar (CE) y la cromatografía … Continue reading
Posted in Theses
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Desarrollo de metodologías analíticas para la determinación de residuos de carbamatos en alimentos y aguas
En esta Tesis se han desarrollado diferentes métodos para la determinación de residuos de carbamatos en alimentos y muestras medioambientales. En el caso de los alimentos, la legislación vigente establece para los carbamatos y otros contaminantes unos Límites Máximos de … Continue reading
Posted in Theses
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Multiclass mycotoxin analysis in Silybum marianum by ultra high performance liquid chromatography–tandem mass spectrometry using a procedure based on QuEChERS and dispersive liquid–liquid microextraction
Ultra high performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS) has been proposed for the determination of 15 mycotoxins in milk thistle (Silybum marianum), including aflatoxins, fumonisins, trichothecenes, ochratoxin A, citrinin, sterigmatocystin and zearalenone. The mycotoxins were detected by electrospray ionization in … Continue reading
Posted in DLLME, Mass spectrometry, Milk thistle, Mycotoxins, QuEChERS, UHPLC
Tagged MS
Comments Off on Multiclass mycotoxin analysis in Silybum marianum by ultra high performance liquid chromatography–tandem mass spectrometry using a procedure based on QuEChERS and dispersive liquid–liquid microextraction
Evaluation of dispersive liquid-liquid microextraction for the determination of patulin in apple juices using micellar electrokinetic capillary chromatography
Patulin (PAT) is a mycotoxin naturally found in fruits, including apples. Its occurrence as a natural contaminant of fruit juices is indicative of fruit quality in production. The European Union has set the maximum content of patulin in 50 μg/kg … Continue reading
Nuevas metodologías analíticas para la determinación de quinolonas y otros residuos en muestras alimentarias y ambientales
En esta Tesis se han desarrollado diferentes métodos para la determinación de contaminantes, Qns y otros residuos, en alimentos y muestras medioambientales. Para ello se han evaluado diferentes técnicas instrumentales separativas, la CE, la HPLC capilar y la UHPLC, acopladas … Continue reading
Posted in Theses
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