Affiliation:
1. CAS Key Laboratory of Marine Geology and Environment & Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
2. Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
3. University of Chinese Academy of Sciences, Beijing, China
Abstract
Raman spectroscopy has been applied to the quantitative analysis of the concentration of bisulfate in acid-sulfate fluids at different temperatures. The quantitative analysis method is based on the peak area ratios of [Formula: see text](ν1) and H2O (ν2), where PA([Formula: see text]/H2O) = [[Formula: see text]] × (0.0066 × T + 1.3070) at a temperature range of 0–100 ℃. We found that the molal scattering coefficient of bisulfate increases slightly at the elevated temperature may be due to the changes of fraction of water molecules that are hydrogen-bonded. The method can also be applied to analyze physicochemical parameters of other acid fluids, such as hydrogen phosphate, bicarbonate, etc., and especially to the in situ detection of deep sea acid-sulfate hydrothermal fluids in the future.
Funder
Taishan Scholar Project Funding
the NSFC-Shandong Joint Fund for Marine Science Research Centers
the Strategic Priority Research Program, CAS
National Key R&D Program of China
Open Research Project of National Magor Science & Technology Intrastructure
the National Natural Science Foundation of China
the Key Research Program of Frontier Sciences
Subject
Spectroscopy,Instrumentation
Cited by
6 articles.
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