Research in pharmacognosy, phytochemistry, antioxidants, food science, cleaning and disinfection, environmental science, analytical chemistry, and chemometrics. Physicochemical analysis in samples of foods, waters, soils, petrochemicals, environment, pharmaceuticals, and natural products. Extraction and clean-up of analytes by column chromatography (CC), thin-layer chromatography (TLC), continuous liquid-liquid extraction, Soxhlet extraction, solid-phase extraction (SPE), solid-phase microextraction (SPME), sonication extraction, microwave-assisted extraction (MWS), etc. Implementation, development, and validation of analytical methods by gas chromatography with mass-selective detector (GC/MSD), flame ionization detector (GC/FID), nitrogen-phosphorus detector (GC/NPD), electron capture detector (GC/ECD), flame photometric detector (GC/FPD); liquid chromatography with diode array detector (HPLC/DAD), with refractive index detector (HPLC/RID), with fluorescence detector (HPLC/FLD); atomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES), molecular absorption spectroscopy (UV-VIS), and infrared spectroscopy. Implementation of quality management systems according to ISO 17025 standard, NTC Quality Seal, Kosher Certification; and audit under the described systems. Use of statistical tools for validation of analytical methods and measurement of the estimation of uncertainty of analytical methods. Chemometrics. Full-time professor in teaching and education of Chemistry for undergraduate and graduate groups at the Pontifical Javeriana University. Doctoral student in Pharmaceutical Sciences at the National University of Colombia.