Stable Isotopes Reveal Sources Of Chinese Tap Water

2019 ◽  
Author(s):  
Shengjie Wang
Keyword(s):  
2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Sihan Zhao ◽  
Hongchang Hu ◽  
Fuqiang Tian ◽  
Qiang Tie ◽  
Lixin Wang ◽  
...  
Keyword(s):  

2012 ◽  
Vol 66 (2) ◽  
Author(s):  
Dana Magdas ◽  
Nicoleta Vedeanu ◽  
Romulus Puscas

AbstractThe determination of the content of stable isotopes, 18O and 2H, respectively, in juice water facilitates the distinction between authentic juices and juices made from concentrates by redilution with tap water. At the same time, the detection of C4 cane or corn-derived sugar syrups in fruit juices which are produced from C3 fruit types is thus facilitated by the characteristic differences in 13C/12C, expressed as δ 13C (‰) values due to photosynthetic CO2 assimilation via the C3−, C4−, and crassulacean acid metabolism pathways. In this study, the quantitative determination of water added to an authentic juice, on the basis of δ 18O, and δ 2H values, respectively, was successfully performed. Also, the δ 18O, and δ 2H of juice water and δ 13C of the whole juice in 18 samples were also determined. The results obtained provided us with the possibility of distinguishing between authentic fruit juices and those obtained by redilution of concentrated fruit juices and the detection of C4 type added sugar.


10.1144/sp507 ◽  
2021 ◽  
Vol 507 (1) ◽  
pp. NP-NP
Author(s):  
A.-V. Bojar ◽  
A. Pelc ◽  
C. Lécuyer

This volume is devoted to Earth surface environmental reconstructions and environmental changes that may be deciphered and modelled using stable isotopes along with mineralogical/chemical, sedimentological, palaeontological/biological and climatological methodologies. The book is divided into two sections, both using stable isotopes (δD, δ18O, δ13C, d15N, δ34S, clumped isotopes Δ47) in various samples and phases as the main research tool. The first section is devoted to studies focusing on the distribution of isotopes in precipitation, groundwater, lakes, rivers, springs, tap water, mine water and their relationship with terrestrial environments at regional to continental scale. In relation to this, the second section includes case studies from a range of continental settings, investigating cave deposits (stalagmites, bat guano), animal skeletons (dinosaurs, alligators, turtles, bivalves), present and past soils (palaeosols) and limestones. The sections focus on the interaction between the surficial water cycle and underground water storage with deposits acting as archives of short- to long-term climatic and environmental changes. Examples from the Early Cretaceous to present time come from Europe, Asia, Africa, North and South America.


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