Open AccessRELATIVE APPROACH TO IDENTIFICATION OF PARAFFIN WAX ADMIXTURES IN BEE WAX
Author(s) -
Vasiliy A. Rudnev,
A. F. Klimchuk,
L. V. Nardid
Publication year - 2016
Publication title -
teorìâ ta praktika sudovoï ekspertizi ì krimìnalìstiki
Language(s) - English
Resource type - Journals
eISSN - 2708-5171
pISSN - 1993-0917
DOI - 10.32353/khrife.2015.31
Subject(s) - paraffin wax , wax , chromatography , materials science , gas chromatography , chemistry , composite material
The article deals with modern methods of identifying paraffin wax admixtures in bee wax. It proves the efficiency of the approach which uses a k coefficient as a criteria to show wax content changes in the mixture with paraffin, k coefficient is a ratio of n-alkanes with even and odd number of carbon atoms. The identification of paraffin was conducted with the use of gas chromatography method without the use of an internal standard. The article considers the capacity of using this method to study paraffin - wax mixtures in a wide contents range of components. The difference in k coefficient values for the paraffin content varying from 0 to 10 % (of the mass) amounted to over 10 units. For the studied sample of pure wax the coefficient was 13.0, and for a 10 %o-admixture ofparaffin it was 2.8. The further increase in paraffin content resulted in a less intensive change of the coefficient value - up to the value of 1.5 with the paraffin content of 43 %. The identification margin in this approach can be estimated at less than 3 % of the mass.