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- E-ISSN 2288-8985
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- P-ISSN1225-0163
- E-ISSN2288-8985
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Determination of radiolysis products in Tri-Octyl Amine by highperformance liquid chromatography-mass spectrometer
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2005, v.18 no.3, pp.201-205
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(2005). Determination of radiolysis products in Tri-Octyl Amine by highperformance liquid chromatography-mass spectrometer. Analytical Science and Technology, 18(3), 201-205.
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Abstract
Tri-octyl amine (TOA) is used in solvent extraction process for radioactive waste. This compound may be degraded to di-octyl amine (DOA), mono-octyl amine (MOA) by radioactive materials. Amount of TOA, DOA and MOA in TOA must be monitored because they production of these compounds means degradation of which leads to a decrease in the extraction yield. Retention behavior for TOA, DOA and MOA are studied with Phenomenex LUNA-C18 (4.6mm25cm) analytical column and CH3OH:H2O (50mmol CH3COONH4) eluent by liquid chromatography. Optimum condition for these compounds is CH3OH:H2O (50 mmol CH3COONH4)=85:15 ratio. TOA, DOA and MOA compounds is well separated within 20minute. Dynamic range is 30~160g/mL for TOA, 5~100g/mL for DOA and 0.1~5g/mL for MOA, respectively. The detection limit are 0.1g/mL for TOA, 1g/mL for DOA (in SCAN mode) and 0.1g/mL for MOA (in SIM mode) in this system with 20L sample loop.
- keywords
- LC-MS, TOA, DOA, MOA, gamma degradation
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