A re-evaluation of the effects of temperature and NaCl concentration on quantitative Raman spectroscopic measurements of dissolved CH4 in NaCl aqueous solutions: Application to fluid inclusion analysis
Ou, Wenjia1; Guo, Huirong2; Lu, Wanjun1,3; Wu, Xiangen1; Chou, I-Ming4
2015-12-06
发表期刊CHEMICAL GEOLOGY
卷号417页码:1-10
摘要We re-evaluated the effects of temperature and NaCl concentration on quantitative Raman spectroscopic measurements of dissolved CH4 in NaCl aqueous solutions with the newly developed Unsaturated Homogenized Solution Method (UHSM). The Raman peak area ratios (PARs) of the symmetric stretching vibrational mode of methane (at similar to 2917 cm(-1)) to the OH stretching band of water in homogeneous CH4-containing aqueous solutions were obtained at temperatures from 273.15 to 603.15 K, pressures from 10 to 120 MPa, and NaCl concentrations from 0 to 5 mol/kg H2O. The pressure and concentration of CH4 (mCH(4)) have little effect on the Quantitative Factor (QF = PAR/mCH(4)). However, the QF shows both temperature and NaCl concentration dependencies; QF increases linearly with temperature from 273 to 603 K at constant NaCl concentration, and the rate of increase of QF to temperature decreases with NaCl concentration. After normalization to QF at 298.15 K, the QF at elevated temperature (T, in K) and NaCl concentration (mNaCl, in mol/kg H2O) can be represented as a function of temperature and mNaCl:
文章类型Article
关键词Quantitative Raman Spectroscopy Fluid Inclusion Temperature Pressure Nacl Concentration Ch4-nacl-h2o
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.chemgeo.2015.09.018
收录类别SCI
语种英语
关键词[WOS]IN-SITU ; HIGH-PRESSURE ; DIFFUSION-COEFFICIENTS ; WATER SOLUTIONS ; DEEP-OCEAN ; METHANE ; CALIBRATION ; SYSTEM ; PHASE ; PART
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000365098800001
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/892
专题深海科学研究部_深海极端环境模拟研究实验室
作者单位1.China Univ Geosci, Key Lab Tecton & Petr Resources, Minist Educ, Wuhan 430074, Peoples R China
2.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China
3.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
4.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
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Ou, Wenjia,Guo, Huirong,Lu, Wanjun,et al. A re-evaluation of the effects of temperature and NaCl concentration on quantitative Raman spectroscopic measurements of dissolved CH4 in NaCl aqueous solutions: Application to fluid inclusion analysis[J]. CHEMICAL GEOLOGY,2015,417:1-10.
APA Ou, Wenjia,Guo, Huirong,Lu, Wanjun,Wu, Xiangen,&Chou, I-Ming.(2015).A re-evaluation of the effects of temperature and NaCl concentration on quantitative Raman spectroscopic measurements of dissolved CH4 in NaCl aqueous solutions: Application to fluid inclusion analysis.CHEMICAL GEOLOGY,417,1-10.
MLA Ou, Wenjia,et al."A re-evaluation of the effects of temperature and NaCl concentration on quantitative Raman spectroscopic measurements of dissolved CH4 in NaCl aqueous solutions: Application to fluid inclusion analysis".CHEMICAL GEOLOGY 417(2015):1-10.
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2015-12-23 15:02