Search Results - "Viñas, P"

In situ ionic liquid dispersive liquid-liquid microextraction coupled to gas chromatography-mass spectrometry for the determination of organophosphorus pesticides by Cacho, J.I., Campillo, N., Viñas, P., Hernández-Córdoba, M.

“…•Ionic liquids have proven to be suitable extractants for OPPs in waters.•In situ IL formation facilitates its dispersion through an aqueous phase.•The whole…”
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Comparison of two derivatization-based methods for solid-phase microextraction-gas chromatography-mass spectrometric determination of bisphenol A, bisphenol S and biphenol migrated from food cans by Viñas, P, Campillo, N, Martínez-Castillo, N, Hernández-Córdoba, M

“…An environmentally friendly sample pretreatment system based on solid-phase microextraction (SPME) for the sensitive determination of bisphenol A (BPA),…”
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Determination of alkylphenols and phthalate esters in vegetables and migration studies from their packages by means of stir bar sorptive extraction coupled to gas chromatography–mass spectrometry by Cacho, J.I., Campillo, N., Viñas, P., Hernández-Córdoba, M.

“…► Several endocrine disrupter chemicals are determined in packed vegetable samples. ► Preconcentration by SBSE and thermal desorption is used before GC–MS. ►…”
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Chagas disease in European countries: the challenge of a surveillance system by Basile, L, Jansa, J M, Carlier, Y, Salamanca, D D, Angheben, A, Bartoloni, A, Seixas, J, Van Gool, T, Canavate, C, Flores-Chavez, M, Jackson, Y, Chiodini, P L, Albajar-Vinas, P

“…A study of aggregate data collected from the literature and official sources was undertaken to estimate expected and observed prevalence of Trypanosoma cruzi…”
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Soil aggregation and organic carbon protection in a no-tillage chronosequence under Mediterranean conditions by Plaza-Bonilla, D., Cantero-Martínez, C., Viñas, P., Álvaro-Fuentes, J.

“…Low-intensity soil management systems like no-tillage (NT) are being increasingly accepted as an essential part of sustainable farming systems. The objective…”
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Stir bar sorptive extraction coupled to gas chromatography–mass spectrometry for the determination of bisphenols in canned beverages and filling liquids of canned vegetables by Cacho, J.I., Campillo, N., Viñas, P., Hernández-Córdoba, M.

“…► Several bisphenols were determined in canned foods. ► The use of SBSE prior to GC–MS resulted in a high sensitivity. ► Low BPA levels were found in most of…”
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Dispersive liquid-liquid microextraction for the determination of nitrophenols in soils by microvial insert large volume injection-gas chromatography–mass spectrometry by Cacho, J.I., Campillo, N., Viñas, P., Hernández-Córdoba, M.

“…•Six nitrophenol compounds were simultaneously determined in soils by GC–MS.•Ultrasound assisted extraction in methanol is applied to isolate the analytes.•UAE…”
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Evaluation of three headspace sorptive extraction coatings for the determination of volatile terpenes in honey using gas chromatography–mass spectrometry by Cacho, J.I., Campillo, N., Viñas, P., Hernández-Córdoba, M.

“…•Volatile monoterpenes are determined in honey by a simple and solvent-free procedure.•PDMS proved to be a suitable coating for these analytes using…”
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Stir bar sorptive extraction with gas chromatography–mass spectrometry for the determination of resveratrol, piceatannol and oxyresveratrol isomers in wines by Cacho, J.I., Campillo, N., Viñas, P., Hernández-Córdoba, M.

“…•cis/trans-Isomers of resveratrol, piceatannol and oxyresveratrol are determined by SBSE-GC–MS.•A new and easy to perform way to obtain the cis-isomers is…”
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Head-space gas chromatography coupled to mass spectrometry for the assessment of the contamination of mayonnaise by yeasts by Arroyo-Manzanares, N., Markiv, B., Hernández, J.D., López-García, I., Guillén, I., Vizcaíno, P., Hernández-Córdoba, M., Viñas, P.

“…•HS-GC–MS is proposed for the assessment of the contamination of mayonnaise.•The method was applied in the detection of C. metapsilosis and Z…”
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The hidden Chagas disease burden in Europe by Albajar-Vinas, P, Jannin, J

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A simple device for headspace sorptive extraction prior to gas chromatography–mass spectrometry analysis by Cacho, J.I., Campillo, N., Viñas, P., Hernández-Córdoba, M.

“…A device for headspace sorptive extraction (HSSE) combined with gas chromatography separation and mass spectrometry detection (GC–MS) is presented. The gadget…”
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Glyoxal and methylglyoxal as urinary markers of diabetes. Determination using a dispersive liquid–liquid microextraction procedure combined with gas chromatography–mass spectrometry by Pastor-Belda, M., Fernández-García, A.J., Campillo, N., Pérez-Cárceles, M.D., Motas, M., Hernández-Córdoba, M., Viñas, P.

“…•Glyoxal and methylglyoxal are used as urinary markers of diabetes.•Urine is treated with a mixture of acetonitrile and water in a highly saline…”
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Characteristics and Therapeutic Needs of Older Patients with Oropharyngeal Dysphagia Admitted to a General Hospital by Viñas, P., Martín-Martínez, A., Cera, M., Riera, S. A., Escobar, R., Clavé, Pere, Ortega, O.

“…Background Oropharyngeal dysphagia (OD) is a prevalent geriatric syndrome causing severe nutritional and respiratory complications. Objective We aimed to…”
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Use of headspace sorptive extraction coupled to gas chromatography–mass spectrometry for the analysis of volatile polycyclic aromatic hydrocarbons in herbal infusions by Cacho, J.I., Campillo, N., Viñas, P., Hernández-Córdoba, M.

“…•First time application of HSSE to the quantification of 10 PAHs in infusion samples.•The analytes were found in several of the infusion samples analyzed.•The…”
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Direct sample introduction gas chromatography and mass spectrometry for the determination of phthalate esters in cleaning products by Cacho, J.I., Campillo, N., Viñas, P., Hernández-Córdoba, M.

“…•First application of DSI–GC–MS to cleaning products.•Minimal sample preparation, extraction and clean-up in a single step.•DSI significantly improves…”
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Cloud point extraction and gas chromatography with direct microvial insert thermal desorption for the determination of haloanisoles in alcoholic beverages by Cacho, J.I., Campillo, N., Viñas, P., Hernández-Córdoba, M.

“…A sensitive analytical procedure for the determination of four haloanisoles (2,4,6 trichloroanisole, 2,4,6-tribromoanisole, 2,3,4,6-tetrachloroanisole and…”
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Serodiscordance in chronic Chagas disease diagnosis: a real problem in non-endemic countries by Moure, Z., Angheben, A., Molina, I., Gobbi, F., Espasa, M., Anselmi, M., Salvador, F., Tais, S., Sánchez-Montalvá, A., Pumarola, T., Albajar-Viñas, P., Sulleiro, E.

“…According to the WHO, chronic Chagas disease (CD) diagnosis is based on two serological techniques. To establish a definitive diagnosis, the results must be…”
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Dispersive liquid—liquid microextraction for the determination of three cytokinin compounds in fruits and vegetables by liquid chromatography with time-of-flight mass spectrometry by Campillo, N., Viñas, P., Férez-Melgarejo, G., Hernández-Córdoba, M.

“…The paper presents a novel approach for the determination of three cytokinin compounds, thidiazuron (TDZ), 1,3-diphenylurea (1,3-DPU) and forchlorfenuron…”
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Headspace sorptive extraction for the detection of combustion accelerants in fire debris by Cacho, J.I, Campillo, N, Aliste, M, Viñas, P, Hernández-Córdoba, M

“…Abstract A novel method for separation and identification of ignitable liquid residues in fire debris by gas chromatography and mass spectrometry is presented…”
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