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- Title
DETERMINATION OF CONCENTRATIONS ²H AND <sup>17</sup>O BY NMR SPECTROSCOPY METHOD IN DRINKING WATER, FRUIT AND VEGETABLES FRESH JUICES WITH INTRODUCTION OF EU(CF<sub>3</sub>SO<sub>3</sub>)<sub>3</sub> TO THE REFERENCE SAMPLE.
- Authors
Dorohova, Anna; Basov, Aleksandr; Moiseev, Arkady; Dzhimak, Stepan
- Abstract
This research presents results of approbation of method for quantitative determination of ²H by NMR spectroscopy using lanthanide shift reagent introduced to the probe as an external NMR standard regarding to which the measurement is taken. Within the process of the conducted studies it was confirmed that the most suitable chemical compound to create a reference sample was europium (III) trifluoromethanesulfonate. It was defined that the highest content of deuterium was determined in Argentine pear juice (144.6 ± 2.3 ppm), the least concentration of deuterium was found in potato juices of Russian and Egyptian origin (-100 ppm), as well as tomatoes from Morocco. The developed method is suitable for analysis of isotope ratios in juices.
- Publication
Carpathian Journal of Food Science & Technology, 2022, Vol 14, Issue 4, p129
- ISSN
2066-6845
- Publication type
Academic Journal
- DOI
10.34302/crpjfst/2022.14.4.10