苯乙烯型大孔树脂对海水中微量有机磷农药的吸附性能研究A Study on the Adsorption Performance of Organophosphorus Pesticides in Seawater by Styrene Type Macroporous Resin
孟范平,马冬冬,姚瑞华
摘要(Abstract):
为获得不含农药的当地海水在利用酶传感器监测海水有机磷农药时作为对照溶液使用,选用苯乙烯型大孔吸附树脂ASD5作为吸附剂,对含马拉硫磷和甲基对硫磷的海水样品进行动态吸附研究。发现该树脂较适合去除海水中的微量马拉硫磷,在温度10℃,流速0.5mL.min-1的条件下,10g树脂制成的吸附柱处理含500μg.L-1马拉硫磷的海水样品(乙酰胆碱酯酶活性抑制率为30.0%),出水的乙酰胆碱酯酶(AChE)活性抑制率仅为0.4%,而对海水自身的性质没有显著影响。结果表明:苯乙烯型大孔吸附树脂ASD5适合去除海水中的微量马拉硫磷,在海水有机磷农药的酶传感器监测中有很好的应用前景。
关键词(KeyWords): 苯乙烯型大孔树脂;海水;有机磷农药;吸附;酶传感器;对照溶液
基金项目(Foundation): 国家高技术研究发展计划项目(2001AA635130)资助
作者(Author): 孟范平,马冬冬,姚瑞华
DOI: 10.16441/j.cnki.hdxb.2006.02.027
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