کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1882925 1533497 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Degradation of trimethoprim by gamma irradiation in the presence of persulfate
ترجمه فارسی عنوان
تجزیه ترمیتوپریم توسط اشعه گاما در حضور پراسفیلات
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
چکیده انگلیسی


• Trimethoprim (TMP) degradation by gamma irradiation was investigated.
• Persulfate significantly enhanced TMP degradation.
• The effect of pH values (6.5, 7.5 and 8.5) on TMP degradation was determined.
• The possible degradation pathway of TMP was tentatively proposed.

The degradation and mineralization of trimethoprim (TMP) by gamma irradiation was investigated in the presence of persulfate (PS). The TMP was degraded at initial concentration of 20 mg/L in aqueous solution with addition of 0, 0.5, 1, 1.5, 2 mM persulfate respectively. The effect of pH values (6.5, 7.5 and 8.5) on TMP degradation was also determined. The experimental results showed that the degradation and mineralization of TMP could be significantly enhanced by persulfate at acidic condition (pH=6.5). Several intermediate products generated during gamma irradiation process through hydroxylation, demethylation and cleavage were identified using liquid chromatography with tandem mass spectrometry (HPLC-MS). The degradation pathway of TMP was tentatively proposed based on the identification of intermediate products.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 127, October 2016, Pages 85–91
نویسندگان
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