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Number of results

Journal

2013 | 11 | 7 | 1239-1247

Article title

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

Content

Title variants

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
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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