The modern technological ability to handle large amounts of information confronts the
chemist with the necessity to re-evaluate the statistical tools he routinely uses. Multivariate …

Chemometric activities in Brazil are described according to three phases: before the
existence of microcomputers in the 1970s, through the initial stages of microcomputer use in …

One of the major interests in soil analysis is the evaluation of its chemical, physical and
biological parameters, which are indicators of soil quality (the most important is the organic …

The determination of mineral nutrients and toxic elements Na, K, Mg, Al, P, S, Ca, Mn, Fe, Ni,
Cu, Zn, Cd, Sb, Pb, Cr and Sn, was made in 21 samples of Brazilian soluble coffee by …

Chemometric data analysis was applied to chromatographic data as a modeling tool to
identify the presence of solvents in gasoline obtained at gas stations in the Minas Gerais …

The nutritional value of prepared foods is frequently questioned or requested at restaurants
by its costumers. Therefore, this paper aimed to apply HCA to categorize foods according to …

The concentrations of sodium, potassium, calcium, magnesium, sulfur and phosphorus
(major elements) and iron, copper, zinc, selenium, molybdenum, chromium and manganese …

The contents of some nutrients in 35 Brazilian green and roasted coffee samples were
determined by flame atomic absorption spectrometry (Ca, Mg, Fe, Cu, Mn, and Zn), flame …

Chemometric data analysis tools were applied to chromatographic data to identify the
presence of solvents in gasoline samples from gas stations in Minas Gerais state, Brazil. A …

A methodology was developed for the authentication of transgenic and non-transgenic
soybean oil samples by using Ultraviolet (UV) spectroscopy coupled with Partial Least …