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Sorption of sulfadiazine on Brazilian soils

机译:磺胺嘧啶在巴西土壤上的吸附

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摘要

Antimicrobials, among them sulfonamides are widely used in veterinary medicine and can contaminate the environment. The degree to which antimicrobials adsorb onto soil particles varies widely, as does the mobility of these drugs. Sulfadiazine (SDZ) was used to study the adsorption-desorption in Brazilian soil-water systems, using batch equilibrium experiments. Sorption of SDZ was carried out using four types of soils. Adsorption and desorption data were well fitted with Freundlich isotherms in log form (r > 0.999) and (0.984 < r< 0.999), respectively. An adsorption-desorption hysteresis phenomenon was apparent in all soils ranging from 0.517 to 0.827. The experimental results indicate that the Freundlich sorption coefficient (K_F) values for SDZ ranged from 0.45 to 2.6 μg~(1-1) (cm~3)~(1) g~(-1).
机译:抗菌剂(其中包括磺酰胺类)已广泛用于兽医学,并且会污染环境。抗菌剂吸附到土壤颗粒上的程度差异很大,这些药物的流动性也是如此。磺胺嘧啶(SDZ)用于通过分批平衡实验研究巴西土壤-水系统中的吸附-解吸。 SDZ的吸附使用四种类型的土壤进行。吸附和解吸数据分别与对数形式的Freundlich等温线拟合良好(r> 0.999)和(0.984

著录项

  • 来源
    《Chemosphere》 |2013年第6期|2027-2034|共8页
  • 作者单位

    Institute of Chemistry, Department of Analytical Chemistry, University of Campinas, P.O. Box 6154, 13084-971 Campinas, SP, Brazil;

    Institute of Chemistry, Department of Analytical Chemistry, University of Campinas, P.O. Box 6154, 13084-971 Campinas, SP, Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    batch experiments; brazilian soils; freundlich sorption isotherms; antimicrobials; sulfadiazine;

    机译:批处理实验;巴西土壤;弗氏吸附等温线;抗菌剂磺胺嘧啶;

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