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Citation: HU Peng, CHEN Ping, CAO Dawei, FU Xiaolong, XIAO Chengjian, WANG Heyi. Hydrogen isotopes analysis by gas chromatography using metal-organic framework CPL-1 packed column[J]. Chinese Journal of Chromatography, ;2017, 35(10): 1023-1027. doi: 10.3724/SP.J.1123.2017.07014 shu

Hydrogen isotopes analysis by gas chromatography using metal-organic framework CPL-1 packed column

Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China

Received Date: 17 July 2017

Fund Project: National Magnetic Confinement Fusion Science Program (Nos. 2014GB111001, 2014GB111004)

CPL-1 is a metal organic framework (MOF) with potential application as stationary phase material in gas chromatographic (GC) analysis, due to its large specific surface area, uniform pore size and good quantum sieving effect on hydrogen isotopes at low temperatures. Herein, a microporous column packed with CPL-1 was used at cryogenic temperature (77 K), and the column was 1.0 mm in inner diameter, 0.5 m in length. Single crystals of Al₂O₃ was used to build flow path for chromatographic carrier gas. The results showed that the adsorption of H₂ and D₂ with CPL-1 was 4 mmol/g at 77 K, which was better than MnCl₂/γ -Al₂O₃ and γ -Al₂O₃. With the injection volume increasing from 0.25 mL to 2 mL, the results showed good linear relationship, and the relative error was less than 4%. The results indicated that the column packed with CPL-1 has wide linear range, good repeatability and high accuracy, and it has potential use in hydrogen isotope analysis with gas chromatography.
- gas chromatography (GC),
- CPL-1 packed column,
- metal organic frameworks (MOFs),
- hydrogen isotope,
- deuterium tritium fuel cycle
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