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Multivariate optimization by exploratory analysis applied to the determination of microelements in fruit juice by inductively coupled plasma optical emission spectrometry
- R. E. S. Froes, W. B. Neto, Nilton O. C. e Silva, R. L. Naveira, C. C. Nascentes, J. Silva
- 1 June 2009
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. The… Expand
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 and… Expand
Exploratory analysis and inductively coupled plasma optical emission spectrometry (ICP OES) applied in the determination of metals in soft drinks.
- R. E. S. Froes, W. B. Neto, R. L. Naveira, Nilton O. C. e Silva, C. C. Nascentes, J. Silva
- 1 May 2009
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 soft… Expand
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, in… Expand
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 water… Expand