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KMID : 0385520080210050403
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Analytical Science & Technology
2008 Volume.21 No. 5 p.403 ~ p.411
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Synthesis of DMDBTDMA and determination of radiolysis products by GC/MS
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Yang Han-Beom
Lee Il-Hee
Park Gyo-Beom
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Abstract
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Dimethyldibutyltetradecylmalonamide (DMDBTDMA) extractant was used in a solvent extraction process for a radioactive liquid waste treatment. For the study of radiolysis phenomena, DMDBTDMA was synthesized and the degradation compounds (n-methylbutylamine, tetradecane, 1-tetradecanol) in the DMDBTDMA extractant, irradiated with 60Co gamma ray, were identified and determined as radiolysis products by a Fourier transform infrared (FT-IR), gas chromatograph/mass spectrometer (GC/MS) analysis and GC/MS with selected ion monitoring (SIM) mode. Retention behavior of n-methylbutylamine, n-dodecane, tetradecane and 1- tetradecanol in the total ion chromatogram with the standard materials and n-dodecane as the internal standard (ISTD) were 2.35 min., 8.83 min., 10.68 min. and 12.75 min., respectively. In the case of tetradecane, there was a linear relationship between the concentration of the tetradecane and the absorbed dose of the γ- ray irradiated DMDBTDMA.
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KEYWORD
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DMDBTDMA, radiolysis, degradation products, GC/MS
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