Yelitza Delgado

Determination of theobromine, theophylline and caffeine in cocoa samples by a high-performance liquid chromatographic method with on-line sample cleanup in a switching-column system

Marı́a del Rosario Brunetto, Lubin Gutiérrez, Yelitza Delgado et al. · Food Chemistry · 2005 · 182 citations

Food Chemistry, Gas Chromatography, Cocoa Samples +9

Determination of losartan, telmisartan, and valsartan by direct injection of human urine into a column-switching liquid chromatographic system with fluorescence detection

Marı́a del Rosario Brunetto, Y. Contreras, Sabrina Clavijo et al. · Journal of Pharmaceutical and Biomedical Analysis · 2009 · 73 citations

Human Urine, Fluorescence Detection, Gas Chromatography +12

Analysis of cocaine and benzoylecgonine in urine by using multisyringe flow injection analysis‐gas chromatography‐mass spectrometry system

Marı́a del Rosario Brunetto, Yelitza Delgado, Sabrina Clavijo et al. · Journal of Separation Science · 2010 · 31 citations

Engineering, Forensic Chemistry, Gc-ms Detection +22

Development of a MSFIA sample treatment system as front end of GC–MS for atenolol and propranolol determination in human plasma

Marı́a del Rosario Brunetto, Sabrina Clavijo, Yelitza Delgado et al. · Talanta · 2014 · 27 citations

Therapeutic Drug Monitoring, Front End, Medicine +10

High-performance liquid chromatographic determination of cocaine and benzoylecgonine by direct injection of human blood plasma sample into an alkyl-diol-silica (ADS) precolumn

Marı́a del Rosario Brunetto, Lubin Gutiérrez, Yelitza Delgado et al. · Analytical and Bioanalytical Chemistry · 2003 · 18 citations

Gas Chromatography, Medicine, Drug Purity +12