Analysis of isotopic ratios for the detection of illegal watering of beverages

摘要

The applications of the stable isotope ratio analyses (D/H, ~(13)C and ~(18)O) in the assessment of watering in beverages such as wine and fruit juices are discussed in this study. The measurement of ~(18)O/~(16)O ratio in combination with D/H and ~(13)C/~(12)C ratio is mainly focused and the international official methods implementing stable isotope techniques will be mentioned. Furthermore, the ongoing study on a possible use of ~(13)C/~(12)C ratio of CO_2 to detect the addition of technical produced CO_2 in mineral sparkling waters is also presented.