HPLC methods are described for the determination of free and total furfurals in liquid and
powdered infant milk formulas.(Hydroxymethyl) furfural, furfural, furyl methyl ketone, and …

A high-performance liquid chromatographic (HPLC) method was developed for the
determination, in one run, of retinol and α-tocopherol in infant milk formulae. The method …

Se desarrolló un método analítico para la cuantificación de taninos en el extracto acuoso de
romerillo (EAR) y se utilizó la espectrofotometría ultravioleta-visible donde las muestras son …

Peroxidic species in ozonized sunflower oil using different methods as iodometric and
ferrous oxidation in xylenol orange (FOX) were measured. The necessary reaction time from …

A derivative spectrophotometric method was developed to determine NO3––N in plant
tissues. The method is based on measurement of the first-derivative spectrum of …

Lipid emulsions can be used as a vehicle for the production of low-volume injectable
preparations with minimally water-soluble active ingredients. First, we focus on the galenic …

The chemistry laboratory at the Peruvian Institute of Nuclear Energy (IPEN) has carried out a
validation method for the samples of siliceous composition. At least seven variables affecting …

Introducción: la Mangiferina es una glicosilxantona natural presente en varias partes del
árbol de Mangifera indica L., a la que se le atribuyen un amplio rango de acciones …

Betaines and other quaternary ammonium compounds play an important role in the
physiological response of plants to stress, especially during drought and salinity conditions …

Se analizaron muestras de aceite de girasol ozonizado a diferentes dosis de ozono
aplicada ya cada una le fue determinada la concentración de hidroperóxidos totales (HPT) …