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Standard Operating Procedure for the Analysis of Major Ions in Hydrothermal Fluids by Ion Chromatography

Open research Europe(2024)

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摘要
This standard operating procedure (SOP) describes an ion chromatography (IC) procedure for the major cations and anions in hydrothermal fluids. Hydrothermal fluids are aqueous solutions with a wide range of temperature, salinity, pH and ion species that can be used by microbial metabolism as electron donors and electron acceptors. Due to the high variability of the environmental physical-chemical parameters in these samples, we have developed this protocol taking into account the special features of the matrices analyzed. An Eco IC Metrohm system equipped with a conductivity detector was used. Calibration curves are linear in the 0.1 to 10 mg/L concentration range for cations Ca2+, Na+, K+, Mg2+, NH4+ and anions Cl-, Br-, NO3-, NO2-, SO42- , HPO42- .
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关键词
Hydrophilic Interaction Chromatography (HILIC),High-Performance Liquid Chromatography (HPLC),Gas Chromatography,Continuous Crystallization,Liquid Chromatography
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