Raman spectral characteristics of 12CO2/13CO2 and quantitative measurements of carbon isotopic compositions from 50 to 450 degrees C and 50 to 400 bar

doi:10.1016/j.saa.2023.122651

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Raman spectral characteristics of 12CO2/13CO2 and quantitative measurements of carbon isotopic compositions from 50 to 450 degrees C and 50 to 400 bar
	Ge, Yuzhou 1,3,4,5; Li, Lianfu 1,3,4; Xi, Shichuan 1,3,4; Ma, Liang 1,3,4; Luan, Zhendong 1,3,4,5; Zhang, Xin 1,2,3,4,5
刊名	SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
	2023-08-05
卷号	296 页码:12
关键词	Raman spectroscopy Carbon dioxide Carbon isotopic Quantitative analysis In situ measurement
ISSN号	1386-1425
DOI	10.1016/j.saa.2023.122651
通讯作者	Zhang, Xin(xzhang@qdio.ac.cn)
英文摘要	The carbon isotopic composition of CO2 is traced to its different origins and widely used in the fields of geology, biology, and chemistry. Raman spectroscopy can be performed in situ, is nondestructive, and requires no sample preparation; these characteristics enable Raman spectroscopy to be considered a new alternative method to measure the carbon isotopic composition of CO2. In this work, Raman spectra of high-purity 13CO2, 12CO2, and six 12CO2-13CO2 binary mixtures with known mixing ratios were collected using a High Pressure Optical Cell (HPOC) at 50-450 degrees C and 50-400 bar. The results showed that the characteristic peak positions of both 13CO2 and 12CO2 shift to lower wavenumbers with increasing temperature and decreasing pressure, but the peak po-sitions of 13CO2 show a larger shift. The peak position difference of the corresponding characteristic peaks be-tween 13CO2 and 12CO2 is greater than 15 cm- 1 under the above temperatures and pressures, and the peaks can be distinguished. However, v-13 overlays vH.B. 12 near 1265 cm -1, v+12 overlaps vH.B.13 near 1288 cm -1. The existence of 13CO2 can cause a change in the Fermi diad splitting of 12CO2 and affect the establishment of CO2 Raman densimeters. The positive correlation obtained between the peak intensity ratio and the content ratio is affected by temperature, pressure, and 13CO2 content. I+13/I+12 and I-13/I-12 were selected as the quantitative indices to establish Raman quantitative analysis models for the determination of the carbon isotopic composition of CO2, which can be applied to in-situ measurements of high-temperature and high-pressure systems.
资助项目	National Natural Science Foundation of China[92058206] ; National Natural Science Foundation of China[42106184] ; National Natural Science Foundation of China[41822604] ; CAS[XDA22050102] ; CAS[XDA19060402] ; Key Laboratory of Marine Geology and Environment, CAS[MGE2021KG06] ; Young Taishan Scholars Program[tsqn201909158] ; China Postdoctoral Science Foundation[2020M682245] ; Natural Science Foundation of Shandong Province[ZR2021QD046] ; Chinese Academy of Sciences
WOS关键词	UPPER-MANTLE TEMPERATURES ; O-H-N ; FLUID INCLUSIONS ; HYDROTHERMAL VENT ; COLD SEEP ; SUPERCRITICAL CO2 ; GAS-RESERVOIRS ; WATER ; FRACTIONATION ; GEOCHEMISTRY
WOS研究方向	Spectroscopy
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000990548500001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/183014]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Zhang, Xin
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 5.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Geol, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Ge, Yuzhou,Li, Lianfu,Xi, Shichuan,et al. Raman spectral characteristics of 12CO2/13CO2 and quantitative measurements of carbon isotopic compositions from 50 to 450 degrees C and 50 to 400 bar[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2023,296:12.
APA	Ge, Yuzhou,Li, Lianfu,Xi, Shichuan,Ma, Liang,Luan, Zhendong,&Zhang, Xin.(2023).Raman spectral characteristics of 12CO2/13CO2 and quantitative measurements of carbon isotopic compositions from 50 to 450 degrees C and 50 to 400 bar.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,296,12.
MLA	Ge, Yuzhou,et al."Raman spectral characteristics of 12CO2/13CO2 and quantitative measurements of carbon isotopic compositions from 50 to 450 degrees C and 50 to 400 bar".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 296(2023):12.