EXPRESS METHOD OF QUANTITATIVE DETERMINATION OF UREA IN MILK
UDC 637.12.07: 661.717.52
ZHUKOVA Yaroslava,
PhD, Head of the Department of Institute of Food Resources of NAAS Ukraine
PETROV Pylyp,
MSc, PhD-student of Institute of Food Resources of NAAS Ukraine
KLIMENKO Lina,
Doctor of Science in Pharmacy, associate Professor of National University of Pharmacy (Kharkiv, Ukraine)
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ZHUKOVA Yaroslava,
PhD, Head of the Department of Institute of Food Resources of NAAS Ukraine
PETROV Pylyp,
MSc, PhD-student of Institute of Food Resources of NAAS Ukraine
KLIMENKO Lina,
Doctor of Science in Pharmacy, associate Professor of National University of Pharmacy (Kharkiv, Ukraine)
EXPRESS METHOD OF QUANTITATIVE DETERMINATION OF UREA IN MILK
The proposed methodical approach in the variant of using the method of additives (MA) expects quantitive determination of urea in milk samples by spectrophotometric method without the need to build a calibration curve and long calculations. This allows significantly speed up the analysis process, reduce material and time costs and at the same time to obtain correct and accurate results, which is confirmed by the validation. The procedure is effective in the range of 0.14–0.7 mg/mL, the detection limit is 0.05 mg/mL. The uncertainty forecast was 7.33 %, which does not exceed the maximum allowable uncertainty of the technique (10 %).
Keywords: method of additives, milk, urea, spectrophotometry. FREE FULL TEXT (PDF)