Results 21 to 30 of about 612,314 (336)
Ecological Processes, 2023 Background Although freshwater ecosystems cover less than 1% of the earth's surface, they support extremely high levels of biodiversity and provide vital ecosystem services.
Fangmin Shuai, Jie Li, Sovan Lek
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MethodsX, 2023 Oxygen stable isotopes (i.e., 16O, 17O, 18O) of nitrite (NO2−) are useful for investigating chemical processes and sources contributing to this important environmental contaminant and nutrient. However, it remains difficult to quantify the oxygen isotope
Wendell W. Walters, Meredith G. Hastings
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Foods, 2021 The carbon stable isotope ratio (δ13C) is a valuable chemical parameter in the investigation of the geographic origin, quality, and authenticity of foods.
Concetta Pironti +5 more
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Research Progress on Spatiotemporal Distribution Characteristics of Carbon Stable Isotopes in Wines from New and Old World Countries [PDF]
Shipin Kexue, 2023 With the continuous development of economic globalization, the production and consumption of wine in New and Old World countries have shown a steady growth trend. Wines of different grades and styles have been developed, which are related to geographical
MA Yanfei, SU Yingyue, WANG Lishan, QI Pengyu, KANG Tianhao, WANG Li, MA Haiyan, XU Guoqian, ZHANG Ang
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Shipin gongye ke-ji, 2023 Objective: To prevent some illegal companies driven by interests from arbitrarily labeling "organic" to deceive consumers using ways such as counterfeiting, forgery, and shoddy food.
Xuemei NIE, Yun XIE, Bozhou XU, Xiuli XU
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A Preliminary Study to Determine the Hydrogen and Oxygen Isotopic Compositions of Natural and Bottled Water using High Sensitivity Isotope Ratio Mass Spectrometry [PDF]
Geo Data, 2021 In this study, we introduce the stable isotopic results of water using a recently installed high sensitivity isotope ratio mass spectrometry (HS-IRMS) system at the Korea Institute of Geoscience and Mineral Resources (KIGAM).
Hyeongseok Song, Hui Je Jo, Dongwoo Yang
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Stable Isotope Ratios and Forensic Analysis of Microorganisms [PDF]
Applied and Environmental Microbiology, 2007 ABSTRACTIn the aftermath of the anthrax letters of 2001, researchers have been exploring various analytical signatures for the purpose of characterizing the production environment of microorganisms. One such signature is stable isotope ratios, which in heterotrophs, are a function of nutrient and water sources. Here we discuss the use of stable isotope
Helen W, Kreuzer-Martin +1 more
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Stable Sr isotope (88Sr/86Sr) fractionation in calcite precious corals
Frontiers in Marine Science, 2022 Stable isotope ratios of Sr (88Sr/86Sr) are a novel indicator for identifying terrestrial and oceanic Sr cycling and biological processes. Here we evaluate the temperature dependence of stable Sr isotope ratios (δ88Sr) in the calcite skeletons of ...
Toshihiro Yoshimura +4 more
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Equations for lipid normalization of carbon stable isotope ratios in aquatic bird eggs. [PDF]
PLoS ONE, 2014 Stable isotope ratios are biogeochemical tracers that can be used to determine the source of nutrients and contaminants in avian eggs. However, the interpretation of stable carbon ratios in lipid-rich eggs is complicated because (13)C is depleted in ...
Kyle H Elliott +2 more
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Molecules, 2022 To broaden the range of measurable pesticides for stable isotope analysis (SIA), we tested whether SIA of the anthranilic diamides cyantraniliprole (CYN) and chlorantraniliprole (CHL) can be achieved under elemental analyzer/isotope ratio mass ...
Hee Young Yun +6 more
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