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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 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 and validation of a rapid column-switching high-performance liquid chromatographic method for the determination of Lamotrigine in human serum
ArticleAbstract: This study describes a simple and sensitive column-switching high-performance liquid chromatographicPalabras claves:Autores:Brunetto R., Contreras Y., Delgado Y., Estela J.M., Martin V.C., Maximo GallignaniFuentes: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:googlescopusRP-HPLC-DAD determination of free amino acids in cocoa samples during fermentation and roasting
ArticleAbstract: Amino acids (AA) composition in cocoa beans can predict the synthesis of compounds which affect cocoPalabras 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:googlescopusSimultaneous determination of some hydride forming elements (Sb, Sn and Pb) in soft solder alloys using a coupling system of flow injection analysis with hydride generation and Fourier transform infrared spectrometry using multiple linear regression
ArticleAbstract: In this paper the simultaneous determination of hydride forming elements (Sn, Sb and Pb) is proposedPalabras claves:Autores:Alciaturi C., Ayala C., Brunetto R., Chirinos J., Delgado Y., Maximo GallignaniFuentes:scopus