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A preliminary experimental study of the boron concentration in vapor and the isotopic fractionation of boron between seawater and vapor during evaporation of seawater
Xiao, YK; Swihart, GH; Xiao, Y; Vocke, RD
2001-10-01
Source PublicationSCIENCE IN CHINA SERIES B-CHEMISTRY
Volume44Issue:5Pages:540-551
SubtypeArticle
AbstractA laboratory experiment was undertaken to investigate the behaviour of boron at the seawater-air interface under air flow conditions. Dried air at 25 and 35 degreesC was passed over or bubbled through seawater at the same temperature. A combination of ice-chilled condensers and KOH impregnated cellulose fibre filters was used to collect boron from the reacted air. When air stripped of boron was passed over the seawater, boron was found in the reacted air, and its concentration was higher in the higher temperature test. In the tests where air was bubbled through seawater the concentration of boron in the reacted air was directly proportional to the air flow rate. In this situation the boron in the reacted air was mainly introduced as a spray of microdroplets. Isotopic analysis of the collected boron in the non-bubbled tests yields fractionation factors which demonstrate that the lighter isotope, B-10, is enriched in the reacted air. The size of the fractionation changes with temperature, ruling out a purely kinetic effect.
KeywordBoron Isotope Isotopic Fractionation Evaporation Seawater
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordIONIZATION MASS-SPECTROMETRY ; ION-EXCHANGE SEPARATION ; SEA-WATER ; ATMOSPHERE
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000171967200013
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6058
Collection青海盐湖研究所知识仓储
Affiliation1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
2.Univ Memphis, Dept Geol Sci, Memphis, TN 38152 USA
3.Natl Inst Stand & Technol, Inorgan Analyt Chem Div, Gaithersburg, MD 20899 USA
Recommended Citation
GB/T 7714
Xiao, YK,Swihart, GH,Xiao, Y,et al. A preliminary experimental study of the boron concentration in vapor and the isotopic fractionation of boron between seawater and vapor during evaporation of seawater[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,2001,44(5):540-551.
APA Xiao, YK,Swihart, GH,Xiao, Y,&Vocke, RD.(2001).A preliminary experimental study of the boron concentration in vapor and the isotopic fractionation of boron between seawater and vapor during evaporation of seawater.SCIENCE IN CHINA SERIES B-CHEMISTRY,44(5),540-551.
MLA Xiao, YK,et al."A preliminary experimental study of the boron concentration in vapor and the isotopic fractionation of boron between seawater and vapor during evaporation of seawater".SCIENCE IN CHINA SERIES B-CHEMISTRY 44.5(2001):540-551.
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