Mostrando 10 resultados de: 10
Publisher
Talanta(3)
Journal of Separation Science(2)
Brazilian Journal of Food Technology(1)
Journal of Pharmaceutical and Biomedical Analysis(1)
Quimica Nova(1)
Área temáticas
Química analítica(8)
Farmacología y terapéutica(2)
Tecnología alimentaria(2)
Alimentación y bebidas(1)
Fisiología humana(1)
Analysis of cocaine and benzoylecgonine in urine by using multisyringe flow injection analysis-gas chromatography-mass spectrometry system
ArticleAbstract: In this paper, a method was described to determine cocaine (COC) and benzoylecgonine (BZE) in humanPalabras claves:BSTFA, Cocaine, GC-MS, MSFIA, URINEAutores:Ayala C., Cerdà V., Clavijo S., Contreras Y., Delgado Y., Forteza R., María del Rosario Brunetto, Maximo Gallignani, Torres D.Fuentes:googlescopusDetermination of atenolol in pharmaceutical dosages by Fourier transform infrared spectrometry (FTIR)
ArticleAbstract: In this work, a simple and rapid alternative method for determining atenolol in solid pharmaceuticalPalabras claves:ATENOLOL, FTIR spectrometry, PharmaceuticalsAutores:Ayala C., María del Rosario Brunetto, Maximo Gallignani, Ovalles F.Fuentes:googlescopusDetermination of losartan, telmisartan, and valsartan by direct injection of human urine into a column-switching liquid chromatographic system with fluorescence detection
ArticleAbstract: Column-switching high-performance liquid chromatographic (HPLC) method has been developed and validaPalabras claves:Human urine, LOSARTÁN, Monolithic column, Telmisartan, ValsartanAutores:Ayala C., Clavijo S., Contreras Y., Delgado Y., Estela J.M., María del Rosario Brunetto, Martin V.C., Maximo Gallignani, Ovalles F., Torres D.Fuentes:googlescopusDevelopment of a MSFIA sample treatment system as front end of GC-MS for atenolol and propranolol determination in human plasma
ArticleAbstract: An on-line solid-phase extraction (SPE) method coupled to gas chromatography-mass spectrometry (GC-MPalabras claves:ATENOLOL, Gas chromatography-Mass spectrometry (GC-MS), Human plasma, Microwave assisted derivatisation, Multisyringe flow injection analysis (MSFIA), Propranolol, Solid-phase extraction (SPE)Autores:Ayala C., Cerdà V., Clavijo S., Delgado Y., María del Rosario Brunetto, Maximo Gallignani, Orozco W.Fuentes:googlescopusFlow analysis-hydride generation-gas phase derivative molecular absorption spectrophotometric determination of antimony in antileishmanial drugs
ArticleAbstract: In the present work, the development of a method based on the coupling of flow analysis (FA), hydridPalabras claves:Antimony, Gaseous phase UV molecular absorption spectrophotometry, leishmaniasisAutores:María del Rosario Brunetto, Maximo Gallignani, Ovalles F.Fuentes:googlescopusFlow analysis-hydride generation-gas phase derivative molecular absorption spectrophotometric determination of antimony in oral homeopathic products ("Antimonium Tartaricum") formulated under alcoholic medium
Conference ObjectAbstract: In this work, a flow analysis-hydride generation-gas phase derivative molecular absorption-(UV) specPalabras claves:Antimony, Derivative spectroscopy, Flow analysis, Gas phase molecular absorption spectrophotometry (GPMAS), Homeopathic products, Hydride generation, StibineAutores:Burguera M., Luis Burguera J., María del Rosario Brunetto, Maximo Gallignani, Ovalles F.Fuentes:googlescopusFlow analysis-vapor phase generation-Fourier transform infrared (FA-VPG-FTIR) spectrometric determination of nitrite
Conference ObjectAbstract: In this work, the coupling between flow analysis (FA)-vapor phase generation (VPG) and Fourier transPalabras claves:Flow analysis, FTIR, Nitric oxide, NitriteAutores:Ayala C., Burguera M., Luis Burguera J., María del Rosario Brunetto, Maximo Gallignani, Sánchez A., Valero M.Fuentes:googlescopusIn-syringe-assisted dispersive liquid-liquid microextraction coupled to gas chromatography with mass spectrometry for the determination of six phthalates in water samples
ArticleAbstract: A fully automated method for the determination of six phthalates in environmental water samples is dPalabras claves:Dispersive liquid-liquid microextraction, experimental design, GC-MS, Multisyringe flow injection analysis, PhthalatesAutores:Cerdà V., Clavijo S., María del Rosario BrunettoFuentes:googlescopusRP-HPLC-DAD determination of free amino acids in cocoa samples during fermentation and roasting
ArticleAbstract: Amino acids (AA) composition in cocoa beans can pbkp_redict the synthesis of compounds which affectPalabras claves:COCOA, Derivatization, Liquid chromatography, column-switching, Microwave radiationAutores:Ayala C., Clavijo S., Delgado Y., María del Rosario Brunetto, Máximo Gallignani , Orozco W., Zambrano A.Fuentes:googlescopusThe effect of fermentation and roasting on free amino acids profile in Criollo cocoa (Theobroma cacao L.) grown in Venezuela
ArticleAbstract: The development of cocoa flavor and aroma is a complex phenomenon that depends on how the fermentatiPalabras claves:Aroma precursors, BSTFA, Gas chromatography, Hydrophobic amino acids, Mass spectrometry, MICROWAVE, Trimethylsilyl derivativesAutores:Ayala C., Clavijo S., Delgado Y., María del Rosario Brunetto, Maximo Gallignani, Orozco W., Zambrano A.Fuentes:googlescopus