Henry's law constant for phosphine in seawater: determination and assessment of influencing factors

doi:10.1007/s00343-013-2212-1

	Henry's law constant for phosphine in seawater: determination and assessment of influencing factors
	Fu Mei 1,2; Yu Zhiming1 ; Lu Guangyuan 1,2; Song Xiuxian1 ; Song, XX
	2013-07-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	31 期号:4 页码:860-866
文章类型	Article
摘要	The Henry's Law constant (k) for phosphine in seawater was determined by multiple phase equilibration combined with headspace gas chromatography. The effects of pH, temperature, and salinity on k were studied. The k value for phosphine in natural seawater was 6.415 at room temperature (approximately 23A degrees C). This value increases with increases in temperature and salinity, but no obvious change was observed at different pH levels. At the same temperature, there was no significant difference between the k for phosphine in natural seawater and that in artificial seawater. This implies that temperature and salinity are major determining factors for k in marine environment. Double linear regression with Henry's Law constants for phosphine as a function of temperature and salinity confirmed our observations. These results provide a basis for the measurement of trace phosphine concentrations in seawater, and will be helpful for future research on the status of phosphine in the oceanic biogeochemical cycle of phosphorus.; The Henry's Law constant (k) for phosphine in seawater was determined by multiple phase equilibration combined with headspace gas chromatography. The effects of pH, temperature, and salinity on k were studied. The k value for phosphine in natural seawater was 6.415 at room temperature (approximately 23A degrees C). This value increases with increases in temperature and salinity, but no obvious change was observed at different pH levels. At the same temperature, there was no significant difference between the k for phosphine in natural seawater and that in artificial seawater. This implies that temperature and salinity are major determining factors for k in marine environment. Double linear regression with Henry's Law constants for phosphine as a function of temperature and salinity confirmed our observations. These results provide a basis for the measurement of trace phosphine concentrations in seawater, and will be helpful for future research on the status of phosphine in the oceanic biogeochemical cycle of phosphorus.
关键词	Phosphine Henry's Law Constant Seawater Influencing Factors Multiple Phase Equilibration
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1007/s00343-013-2212-1
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000321629400018
WOS关键词	MATRIX-BOUND PHOSPHINE ; MULTIPLE PHASE EQUILIBRATION ; CHINA ; GAS ; PHOSPHORUS ; WATER ; LAKE ; TEMPERATURES ; HYDROSPHERE ; TROPOSPHERE
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/16476
专题	海洋生态与环境科学重点实验室
通讯作者	Song, XX
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Fu Mei,Yu Zhiming,Lu Guangyuan,et al. Henry's law constant for phosphine in seawater: determination and assessment of influencing factors[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2013,31(4):860-866.
APA	Fu Mei,Yu Zhiming,Lu Guangyuan,Song Xiuxian,&Song, XX.(2013).Henry's law constant for phosphine in seawater: determination and assessment of influencing factors.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,31(4),860-866.
MLA	Fu Mei,et al."Henry's law constant for phosphine in seawater: determination and assessment of influencing factors".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 31.4(2013):860-866.

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