Henry's Law constant for phosphine in seawater:determination and assessment of influencing factors
文献类型：CNKI期刊论文
| 作者 | Fu M(付梅); Yu ZM(俞志明) ; Lu GY(卢光远); Song XX(宋秀贤)
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| 发表日期 | 2013-07-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | phosphine Henry’s Law constant seawater influencing factors multiple phase equilibration |
| 英文摘要 | 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 23°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. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China (Nos.30970522,40576058) ; the National Natural Science Foundation of China for Creative Research Groups (No.41121064) |
| 卷 | v.31期:04页:164-170 |
| 语种 | 英文; |
| 分类号 | X834;X820 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190795]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofMarineEcologyandEnvironmentalSciences,InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Fu M,Yu ZM,Lu GY,et al. Henry's Law constant for phosphine in seawater:determination and assessment of influencing factors. 2013. |
入库方式： OAI收割
来源：海洋研究所
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