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题名: A preliminary experimental study of the boron concentration in vapor andthe isotopic fractionation of boron between seawater and vapor duringevaporation of seawater
作者: Xiao, YK ;  Swihart, GH ;  Xiao, Y ;  Vocke, RD
刊名: SCIENCE IN CHINA SERIES B-CHEMISTRY
出版日期: 2001
卷号: 44, 期号:5, 页码:540-551
英文摘要: A 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. A 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.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.isl.ac.cn/handle/363002/2328
Appears in Collections:青海盐湖研究所知识仓储(2014年之前)_期刊论文

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Recommended Citation:
Xiao, YK,Swihart, GH,Xiao, Y,et al. A preliminary experimental study of the boron concentration in vapor andthe isotopic fractionation of boron between seawater and vapor duringevaporation of seawater[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,2001,44(5):540-551.
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