Cadmium and iron are antagonistic elements in the sense that they produce different effects
in the human body. Both elements have to be determined routinely in grain products …

A method has been developed for the simultaneous determination of Ni and Fe in
vegetables of the Solanaceae family (bell pepper, tomato, potato, eggplant, physalis, and …

Toxicity characteristic leaching procedure (TCLP) is a standard extraction procedure in
acetic acid medium for toxicity assessment. Fluoride (F−) is one of the extracted forms of …

In this work, a simple, fast and sensitive method for the determination of Mn, Ni, Rb and Sr in
powdered samples of guarana (Paullinia cupana), catuaba (Anemopaegmaglaucum) …

Laser-induced breakdown spectroscopy is an optical emission technique quite suitable for
the analysis of recalcitrant materials as it eliminates complex procedures of sample …

Vochysia divergens Pohl (commonly known as cambara) is a pioneer tree species that is
native to the Amazon Basin but has been invading the seasonally flooded wetlands of the …

This paper presents a new speciation method of n-compounds in food samples using the
technique of High-Resolution Continuum Source Molecular Absorption Spectrometry (HR …

The unprecedented use of high-resolution continuum source molecular absorption
spectrometry (HR-CS MAS) for the fractionation of organic and inorganic sulfur (S) species …

A method was developed to sequentially assay ten rare earth elements by high-resolution
continuum source flame atomic absorption spectrometry. The rare earth elements Nd, Sm …

Os metais sódio, potássio, magnésio e cálcio podem danificar a estabilidade do biodiesel,
pois tendem a reagir com ésteres e produzir sabão. Neste trabalho foi desenvolvido um …