Category Archives: UHPLC

Determination of bile acids in serum of pigs exposed to polychlorinated biphenyls by liquid chromatography-mass spectrometry.

Exposure to polychlorinated biphenyls (PCBs) has been linked to dyslipidemia. Under acute exposure to PCBs, it has been observed that the secretion of bile acids (BAs) can be impacted, limiting (indirectly) lipid absorption in the gut. In this context, two … Continue reading

Posted in Liquid-liquid extraction, Mass spectrometry, Metabolomics, PID2020–120020RA-I00, Pig serum, Polychlorinated biphenyls, UHPLC | Tagged , , , | Comments Off on 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.

Food and feed contamination with mycotoxins is a major public health concern. Humans and animals are exposed to these toxins by consuming contaminated products throughout their lives. In this study, a method based on dispersive liquid–liquid microextraction (DLLME), followed by … Continue reading

Posted in Aflatoxins, DLLME, Durum wheat, Fluorescence, Milk, Mycotoxins, PID2021-127804OB-I00, PROYEXCEL_00195, Photo-induced, UHPLC | Tagged , , | Comments Off on Mycotoxin occurrence in milk and durum wheat samples from Tunisia using dispersive liquid–liquid microextraction and liquid chromatography with fluorescence detection.

Ion mobility-mass spectrometry to extend analytical performance in the determination of ergot alkaloids in cereal samples.

This work evaluates the potential of ion mobility spectrometry (IMS) to improve the analytical performance of current liquid chromatography-mass spectrometry (LC-MS) workflows applied to the determination of ergot alkaloids (EAs) in cereal samples. Collision cross section (CCS) values for EA … Continue reading

Posted in Barley, Ergot alkaloids, Ion mobility, PID2021-127804OB-I00, QuEChERS, UHPLC, Wheat | Tagged , , | Comments Off on Ion mobility-mass spectrometry to extend analytical performance in the determination of ergot alkaloids in cereal samples.

Determination of principal ergot alkaloids in swine feeding

Ergot alkaloids are secondary metabolites produced by fungi in the genus Claviceps. They contaminate a large variety of cereals, such as rye, triticale, wheat and barley. The ingestion of contaminated cereals might cause adverse health effects in humans and animals. … Continue reading

Posted in Animal feed, Ergot alkaloids, Mass spectrometry, QuEChERS, RTI2018-097043-B-I00, UHPLC | Tagged , , | Comments Off on Determination of principal ergot alkaloids in swine feeding

Determination of the main ergot alkaloids and their epimers in oat-based functional foods by ultra-high performance liquid chromatography tandem mass spectrometry.

An ultra-high performance liquid chromatography coupled to tandem mass spectrometry method is proposed for the determination of the major ergot alkaloids (ergometrine, ergosine, ergotamine, ergocornine, ergokryptine, ergocristine) and their epimers (ergometrinine, ergosinine, ergotaminine, ergocorninine, ergokryptinine, and ergocristinine) in oat-based foods … Continue reading

Posted in Ergot alkaloids, Mass spectrometry, Mycotoxins, Oat, QuEChERS, RTI2018-097043-B-I00, UHPLC | Tagged , , | Comments Off on Determination of the main ergot alkaloids and their epimers in oat-based functional foods by ultra-high performance liquid chromatography tandem mass spectrometry.

Occurrence of ergot alkaloids in barley and wheat from Algeria

The natural occurrence of six major ergot alkaloids, ergometrine, ergosine, ergotamine, ergocornine, ergokryptine and ergocristine, as well as their corresponding epimers, were investigated in 60 cereal samples (barley and wheat) from Algeria. Ultra-high performance liquid chromatography coupled to tandem mass … Continue reading

Posted in Barley, Ergot alkaloids, Mass spectrometry, Mycotoxins, QuEChERS, RTI2018-097043-B-I00, UHPLC, Wheat | Tagged , , | Comments Off on Occurrence of ergot alkaloids in barley and wheat from Algeria

Determination of sulfonylurea pesticide residues in edible seeds used as nutraceuticals by QuEChERS in combination with ultra-high-performance liquid chromatography-tandem mass spectrometry

This work proposes a novel Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method in combination with ultra-high performance liquid chromatography-tandem mass spectrometry for the determination of sulfonylurea residues in edible seeds. The chromatographic separation of nine sulfonylureas was accomplished … Continue reading

Posted in AGL2015-70708-R, Mass spectrometry, QuEChERS, Seeds, Sulfonylurea, UHPLC | Tagged , , | Comments Off on Determination of sulfonylurea pesticide residues in edible seeds used as nutraceuticals by QuEChERS in combination with ultra-high-performance liquid chromatography-tandem mass spectrometry

Multi-mycotoxin occurrence and exposure assessment approach in foodstuffs from Algeria

A survey on 120 cereal samples (barley, maize, rice and wheat) from Algerian markets has been carried out to evaluate the presence of 15 mycotoxins (ochratoxin A, deoxynivalenol, fumonisin B1 and B2, T-2 and HT-2 toxins, zearalenone, fusarenon X, citrinin, … Continue reading

Posted in AGL2015-70708-R, Barley, Maize, Mass spectrometry, Mycotoxins, QuEChERS, Rice, UHPLC, Wheat | Tagged , | Comments Off on Multi-mycotoxin occurrence and exposure assessment approach in foodstuffs from Algeria

Monitoring of cyanotoxins in water from hypersaline microalgae colonies by ultra high performance liquid chromatography with diode array and tandem mass spectrometry detection following salting-out liquid-liquid extraction.

In this study two different analytical approaches have been developed to determine the presence of several cyanotoxins in saline water samples from a continental salt marsh. A salting-out assisted liquid-liquid extraction (SALLE) has been used in combination with ultra-high performance … Continue reading

Posted in Cyanotoxins, Mass spectrometry, RTI2018-097043-B-I00, SALLE, UHPLC, UV-vis, Water | Tagged , , , | Comments Off on Monitoring of cyanotoxins in water from hypersaline microalgae colonies by ultra high performance liquid chromatography with diode array and tandem mass spectrometry detection following salting-out liquid-liquid extraction.

Plant-based milks: unexplored source of emerging mycotoxins. A proposal for the control of enniatins and beauvericin using UHPLC-MS/MS

Mycotoxins have become one of the most common contaminants reported worldwide. Current legislation has established maximum levels only for some well-known mycotoxins; however, there are many other “emerging mycotoxins” for which there is no regulation, as enniatins and beauvericin. An … Continue reading

Posted in AGL2015-70708-R, Enniatins, Mass spectrometry, SALLE, UHPLC, Vegetable milks | Tagged , , | Comments Off on Plant-based milks: unexplored source of emerging mycotoxins. A proposal for the control of enniatins and beauvericin using UHPLC-MS/MS