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Journal
2013 | 11 | 7 | 1239-1247
Article title

Application of the calibration surfaces method in quantitative analysis of water - ethanol - methanol mixture

Content
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Languages of publication
EN
Abstracts
EN
The simple and quick calibration surfaces method has been applied to the quantitative analysis of water - ethanol - methanol mixtures. The refractive index, viscosity, boiling point, density, and position of the absorption band of the solvatochromic dye and the absorbance of the band corresponding to a particular wavelength were used as measured magnitudes which are functionally related to the quantitative composition of the mixture. The 3rd order surface equation was fitted to the experimental data via the multidimensional regression method. Various pairs of macroscopic features were tested to obtain the best results. To find the solution, the set of three equations were calculated, in which two equations were the mathematical description of particular macroscopic features; the third one resulted from the definition of mass fraction. The detection and determination limits as well as the error of the method were determined which proved that the refractive index and the density were the most adequate pair of macroscopic features. [...]
Publisher

Journal
Year
Volume
11
Issue
7
Pages
1239-1247
Physical description
Dates
published
1 - 7 - 2013
online
26 - 4 - 2013
Contributors
author
  • Department of Instrumental Analysis, Institute of Chemistry and Environmental Protection, West Pomeranian University of Technology, 71-065, Szczecin, Poland, msawicka@zut.edu.pl
author
  • Department of Instrumental Analysis, Institute of Chemistry and Environmental Protection, West Pomeranian University of Technology, 71-065, Szczecin, Poland
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-013-0252-1
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