Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2010, Vol. 21 ›› Issue (6): 334-338 doi: 10.13538/j.1001-8042/nst.21.334-338

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E-beam degradation of thiamphenicol and florfenicol

ZHOU Jiaxin WU Minghong~* XU Gang MA Jing WANG Liang LIU Ning   

  1. Shanghai Applied Radiation Institute,Shanghai University,Shanghai 200444,China
ZHOU Jiaxin, WU Minghong, XU Gang, MA Jing, WANG Liang, LIU Ning . E-beam degradation of thiamphenicol and florfenicol.Nuclear Science and Techniques, 2010, 21(6): 334-338     doi: 10.13538/j.1001-8042/nst.21.334-338

Abstract:

Thiamphenicol(THA) and florfenicol(FLO) aqueous solutions were irradiated to different doses by 1 MeV electron beams,and redox reactions of THA/FLO and radicals of OH,e_(eq)~- and ~·H were investigated under various conditions.The results showed that at 8 kGy,the decomposition rate of THA and FLO was 97.2%and 98.5%, respectively.Quantitative and qualitative analysis indicated that OH played a key role in E-beam degradation of the THA and FLO in aqueous solutions,and e_(eq)~- and ~·H radicals could initiate the degradation,too.Seven primary products of the THA and FLO degradation were identified.These indicate that E-beam radiation is an effective method to reduce THA and FLO in aqueous solutions.

Key words: Thiamphenicol, Florfenicol, E-beam irradiation, Mechanism