Helena Redigolo Pezza

• Abstract

  Nowadays, the development of rapid, simple and inexpensive analytical methods is of growing interest, especially since fast decisions are often needed in the medical diagnostic, and forensic, environmental, and industrial chemistry field. In addition, in the development of a new analytical method the amounts and toxicities of the reagents used, and the wastes produced, are as important as…

  Development of vanguard analytical methods using spot test and paper-based microfluidic device., AP.R

• Abstract

  Nanotechnology is a multidisciplinary science that includes scientific and technological activities in the nanometer scale, which includes materials with length between 1 and 100 nm in at least one dimension. Quantum dots are nanoparticles capable to emitting light in the visible region, when excited with electromagnetic radiation of higher energy than the emitted. Quantum dots have wide …

  Development of microfluidic paper-based analytical device for clinical interest analysis with fluorescence detection, BP.DR

• Abstract

  Symbol of hospitality, coffee is the second beverage most consumed in Brazil and its regular and moderate consumption brigs several benefits to human health. In the year of 2015 were exported over 33 million coffee bags generating revenues of almost US$ 5.6 million to Brazil which is the largest producer and exporter of this commodity. The oil extract from raw coffee bean has an elevate …

  Development of methods to detect adulteration in roasted coffee and oil coffee, BP.DR

• Abstract

  Nitrogen is mainly present in the human body as a constituent of proteins and nucleic acids. The catabolism of these substances form nitrogenous compounds known as non-protein. Among the various non-protein nitrogenous compounds known, uric acid and creatinine may be used as biomarkers of renal function in humans. Creatinine is derived from the nonenzymatic reaction of dehydration of crea…

  Simultaneous determination of biomarkers of renal function in urine using microfluidic paper: based analytical device, BP.MS

(Only some records are available in English at this moment)

• Abstract

  Brazil is the world's leader producer of coffee seeds; in 2017, the production was about 1.7 billion tons. Unfortunately, coffee is a known target of adulteration with different types of materials such as corn, soy, barley and coffee husks. In the last years, the coffee oil, a relative new product derived from raw coffee seeds, has been gaining space in the cosmetic and medicinal industri…

  Novel analytical methodologies for detection of adulteration in ground coffee and coffee oil, BE.EP.DR

• Abstract

  Paper is been used successfully in analytical determinations in the past decades; it is a cheap, available, biocompatible and renewable raw material. Paper has several different applications, such as paper chromatography, paper-strip, lateral flow assay, electrophoresis, flow chemistry and mass spectrometry. Paper-spray mass spectrometry (PS-MS) is an ambient ionization method that combin…

  Paper-spray mass spectrometry as a tool for doping detection, BE.EP.DR