Bojanowska-Czajka A, Nichipor H, Drzewicz P, Szostek B, Gałęzowska A, Męczyńska S, Kruszewski M, Zimek Z, Nałęcz-Jawecki G, Trojanowicz M
Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland.
Institute of Radiation Physical and Chemical Problems, National Academy of Science of Belarus, Minsk, Belarus.
J Radioanal Nucl Chem. 2011;289(2):303-314. doi: 10.1007/s10967-011-1104-0. Epub 2011 Apr 28.
The radiolytic degradation of widely used fungicide, carbendazim, in synthetic aqueous solutions and industrial wastewater was investigated employing γ-irradiation. The effect of the absorbed dose, initial concentration and pH of irradiated solution on the effectiveness of carbendazim decomposition were investigated. Decomposition of carbendazim in 100 μM concentration in synthetic aqueous solutions required irradiation with 600 Gy dose. The aqueous solutions of carbendazim have been irradiated in different conditions, where particular active radical species from water radiolysis predominate. The obtained data have been compared with the kinetic modeling. The reversed-phase high-performance liquid chromatography was used for the determination of carbendazim and its radiolytic decomposition products in irradiated solutions. The changes of toxicity of irradiated solutions were examined with different test organisms and human leukemia cells.
采用γ辐射研究了广泛使用的杀菌剂多菌灵在合成水溶液和工业废水中的辐射降解情况。研究了吸收剂量、辐照溶液的初始浓度和pH值对多菌灵分解效果的影响。在合成水溶液中，浓度为100μM的多菌灵分解需要600Gy剂量的辐照。多菌灵水溶液在不同条件下进行辐照，其中水辐射分解产生的特定活性自由基占主导。将获得的数据与动力学模型进行了比较。采用反相高效液相色谱法测定辐照溶液中多菌灵及其辐射分解产物。用不同的试验生物和人类白血病细胞检测辐照溶液毒性的变化。
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