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- W2912754814 abstract "A new test method was established for the determination of purity and impurities of ethylene glycol (EG) by gas chromatography (GC) using a Rtx-624 column (30 m×0.32 mm×1.8 μm). The method determined not only the impurities in EG from the ethylene oxidation process, such as diethylene glycol, triethylene glycol and (1,3-dioxolan-2-yl)methanol, but also the impurities from the oxalate hydrogenation process, such as 1,2-butanediol, 1,4-butanediol, 1,2-hexanediol, and ethylene carbonate, etc. The method showed good repeatability and high detection sensitivity. The lowest LOD of the impurities reached to 0.0002% (mass fraction), and the recoveries of the impurities were in the range of 91.2%-105.4%. The proposed method can be applied in production control, product testing and market trade of ethylene glycol." @default.
- W2912754814 created "2019-02-21" @default.
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- W2912754814 date "2019-01-01" @default.
- W2912754814 modified "2023-09-27" @default.
- W2912754814 title "Determination of purity and impurities of ethylene glycol for industrial use by gas chromatography" @default.
- W2912754814 doi "https://doi.org/10.3724/sp.j.1123.2018.08030" @default.
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