A preliminary experimental study of the boron concentration in vapor andthe isotopic fractionation of boron between seawater and vapor duringevaporation of seawater

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	A preliminary experimental study of the boron concentration in vapor andthe isotopic fractionation of boron between seawater and vapor duringevaporation of seawater
	Xiao, YK; Swihart, GH; Xiao, Y; Vocke, RD
	2001
发表期刊	SCIENCE IN CHINA SERIES B-CHEMISTRY
ISSN	1006-9291
卷号	44 期号:5 页码:540-551
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.
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/2328
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	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.
APA	Xiao, YK,Swihart, GH,Xiao, Y,&Vocke, RD.(2001).A preliminary experimental study of the boron concentration in vapor andthe isotopic fractionation of boron between seawater and vapor duringevaporation 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 andthe isotopic fractionation of boron between seawater and vapor duringevaporation of seawater".SCIENCE IN CHINA SERIES B-CHEMISTRY 44.5(2001):540-551.