• Publications
  • Influence
Multivariate optimization by exploratory analysis applied to the determination of microelements in fruit juice by inductively coupled plasma optical emission spectrometry
Abstract A method for the direct determination (without sample pre-digestion) of microelements in fruit juice by inductively coupled plasma optical emission spectrometry has been developed. TheExpand
  • 39
  • 3
Quantification of Inorganic Constituents in Brazilian Human Milk by ICP OES
A fast procedure to determine essential and toxic metals in Brazilian human milk by ICP OES is proposed. Mature and colostrum human milk samples were mineralized using closed-pressurized andExpand
  • 4
  • 1
Exploratory analysis and inductively coupled plasma optical emission spectrometry (ICP OES) applied in the determination of metals in soft drinks.
Abstract A 23 factorial design and a CCD (Central Composite Design) were employed to optimize the operational conditions for determining Al, Ba, Ca, Cd, Cr, Cu, K, Mg, Na, Ni, Pb, Sn and Zn in softExpand
  • 28
Comparison between ordinary least squares regression and weighted least squares regression in the calibration of metals present in human milk determined by ICP-OES.
In this study we compared the use of ordinary least squares and weighted least squares in the calibration of the method for analyzing essential and toxic metals present in human milk by ICP-OES, inExpand
  • 18
Extraction of pectin from agroindustrial residue with an ecofriendly solvent: use of FTIR and chemometrics to differentiate pectins according to degree of methyl esterification
Abstract Pectins are members of the more complex class of high molecular weight heteropolysaccharides. They consist mainly of (1 → 4)-linked α- d -galacturonic acid residues, which may be partiallyExpand
  • 4
Determination of inorganic constituents in hemodialysis water samples using inductively coupled plasma optical emission spectrometry with axially and radially viewed configurations
Inductively coupled plasma optical emission spectrometry (ICP-OES) was used to determine macro- (Ca, K, Mg, and Na) and microelements (Al, Ba, Cd, Cr, Cu, Fe, Mn, Pb, and Zn) in hemodialysis waterExpand
  • 4
Mineral content in honey and pollen from native stingless bees Tetragonisca angustula (Latreille, 1811) in the Iron Quadrangle, Brazil
The objective of this work was to determine the mineral content of honey and pollen of the Brazilian native Jataí bee (Tetragonisca angustula) sampled at nine sites in the so-called Iron QuadrangleExpand
  • 1
Preparation and characterization of a new reference material for the inorganic analysis of corn flour
Corn is one of the most consumed cereals in world and the second most cultivated in Brazil. Cereal flour has a flavor well accepted by the Brazilian population. This work describes the preparationExpand
  • 4