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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
Solid phase extraction as sample treatment for the determination of Ochratoxin A in foods: A review.
Ochratoxin A (OTA) is a mycotoxin produced by two main types of fungi, Aspergillus and Penicillium species. OTA is a natural contaminant found in a large number of different matrices and is considered as a possible carcinogen for humans. Hence, … Continue reading
Posted in Food, Mycotoxins, Review, SPE
Tagged SPE
Comments Off on Solid phase extraction as sample treatment for the determination of Ochratoxin A in foods: A review.
Evaluation of direct analysis in real time for the determination of highly polar pesticides in lettuce and celery using modified Quick Polar Pesticides Extraction method
Direct analysis in real time (DART) was evaluated for the determination of a number of highly polar pesticides using the Quick Polar Pesticides Extraction (QuPPe) method. DART was hyphenated to high resolution mass spectrometry (HRMS) in order to get the … Continue reading
Validation of a new method based on salting-out assisted liquid-liquid extraction and UHPLC-MS/MS for the determination of betalactam antibiotics in infant dairy products
In this work a new multiresidue method has been developed for the determination of 15 betalactam antibiotics in infant milk and yogurt based on follow-on milk by ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). The separation was achieved in 6 min, … Continue reading
Posted in Mass spectrometry, Milk, P12-AGR-1647, SALLE, UHPLC, Yogurt, β-lactams
Tagged HPLC, MS, SALLE
Comments Off on Validation of a new method based on salting-out assisted liquid-liquid extraction and UHPLC-MS/MS for the determination of betalactam antibiotics in infant dairy products
Determination of benzimidazoles in meat samples by capillary zone electrophoresis tandem mass spectrometry following dispersive liquid–liquid microextraction.
A novel method based on capillary zone electrophoresis-tandem mass spectrometry has been proposed and validated for the identification and simultaneous quantification of twelve benzimidazoles in meat samples. Electrophoretic separation was carried out using 500 mM formic acid (pH 2.2) as background … Continue reading
Posted in Benzimidazoles, CZE, DLLME, Mass spectrometry, P12-AGR-1647, Pork muscle
Tagged CE, DLLME, MS
Comments Off on Determination of benzimidazoles in meat samples by capillary zone electrophoresis tandem mass spectrometry following dispersive liquid–liquid microextraction.
Use of onion extract as a dairy cattle feed supplement: monitoring propyl propane thiosulfonate as a marker of its effect on milk attributes.
Onion extract is used as a feed supplement for the diet of dairy cows, acting as inhibitor of methane production; however, its properties could alter sensory attributes of milk. In this work, we propose a method to evaluate the influence … Continue reading
High-throughput methodology for the determination of carbamates in food supplements by UHPLC–MS/MS.
Food supplements are increasingly consumed products that claim to have several benefits for health. In many cases, these supplements contain herbal products and, as a consequence, can be contaminated with pesticides used in crops. This study aimed to use a … Continue reading
Posted in AGL2015-70708-R, Carbamates, Mass spectrometry, QuEChERS, Supplements, UHPLC
Tagged HPLC, MS, QuEChERS
Comments Off on High-throughput methodology for the determination of carbamates in food supplements by UHPLC–MS/MS.
Evaluation of a new modified QuEChERS method for the monitoring of carbamate residues in high-fat cheeses by using UHPLC–MS/MS.
A simple and efficient method for the determination of 28 carbamates in high-fat cheeses is proposed. The methodology is based on a modified quick, easy, cheap, effective, rugged, and safe procedure as sample treatment using a new sorbent (Z-Sep+) followed … Continue reading
Posted in Carbamates, Cheese, Mass spectrometry, P12-AGR-1647, QuEChERS, UHPLC
Tagged HPLC, MS, QuEChERS
Comments Off on Evaluation of a new modified QuEChERS method for the monitoring of carbamate residues in high-fat cheeses by using UHPLC–MS/MS.
Development of magnetic molecularly imprinted polymers for selective extraction: determination of citrinin in rice samples by liquid chromatography with UV diode array detection.
In this work, we report the synthesis of novel magnetic molecularly imprinted polymers (m-MIPs) and their application to the selective extraction of the mycotoxin citrinin (CIT) from food samples. The polymers were prepared by surface imprinting of Fe3O4 nanoparticles, using … Continue reading
Posted in HPLC, MIPs, Mycotoxins, Rice, UV-vis
Comments Off on Development of magnetic molecularly imprinted polymers for selective extraction: determination of citrinin in rice samples by liquid chromatography with UV diode array detection.
Metodologías avanzadas para la determinación de 5-nitroimidazoles en muestras alimentarias, ambientales y clínicas.
The goals of this Thesis are within the scopes of several research projects carried out in the last years and included within the research lines of the group in which this Thesis has been performed. The main goal has been … Continue reading
Posted in Theses
Comments Off on Metodologías avanzadas para la determinación de 5-nitroimidazoles en muestras alimentarias, ambientales y clínicas.
Determination of aflatoxins in yogurt by dispersive liquid – liquid microextraction and HPLC with photo-induced fluorescence detection.
A high-performance liquid chromatography (HPLC) method with fluorescence detection for the determination of aflatoxins B1, B2, G1, G2, and M1 in yogurt using dispersive liquid–liquid microextraction as alternative sample treatment has been developed. To enhance the fluorescence of aflatoxins B1 … Continue reading
Posted in AGL2015-70708-R, Aflatoxins, DLLME, HPLC, P12-AGR-1647, Photo-induced, Yogurt
Tagged DLLME, HPLC
Comments Off on Determination of aflatoxins in yogurt by dispersive liquid – liquid microextraction and HPLC with photo-induced fluorescence detection.