Further Experiments Comparing Direct Vapor Equilibration and Cryogenic Vacuum Distillation for Plant Water Stable Isotope Analysis [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 631.5 Cultivation and harvesting
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Department of Energy. Office of Environmental Restoration and Waste Management ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2019
• Mô tả vật lý: Size: 5 p. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 259997
• Chủ đề: 1. 60 applied life sciences; 2. Cryogenic vacuum distillation; 3. Direct vapor equilibration; 4. Plant water stable isotope analysis

Tóm tắt

 Recent work compared six plant water extraction approaches for hydrogen and oxygen stable isotope analysis. Previously it was believed that these ex- traction approaches would provide analytes whose ?<
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 H and ?<
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 O values were similar, but the authors found significant differences in the isotopic composition of the produced analytes. We report a short followup experiment to specially explore systematic differences between one form of cryogenic vacuum distillation (hereafter CVD-2 from, based on Koeniger et al.[2]), and direct vapour equilibration (DVE[3, 4]).