论文部分内容阅读
[目的]研究农田灌溉水是否受到多环芳烃的污染及其污染的程度,为农田灌溉水源污染治理提供科学依据。[方法]选用某市河流农田灌溉水为研究对象,液液萃取提取农田灌溉水中多环芳烃,高效液相色谱仪梯度洗脱,紫外和程序可变波长荧光检测器检测水中的萘、菲、荧蒽、芘、■、苯并(k)荧蒽、苯并(a)芘这7种多环芳烃的含量。[结果]该地区农田灌溉水样品检测出萘、菲、荧蒽、芘、■,总量分布范围在0.3901～1.7363μg/L,其中2～3环的萘、菲、荧蒽的含量较高,占多环芳烃总量的80%以上,而4环以上的PAHs含量相对较少。[结论]该农田灌溉水存在一定污染,需要加强治理。
[Objective] The research aimed to study whether farmland irrigation water is polluted by PAHs and its degree of pollution and provide a scientific basis for farmland irrigation water pollution control. [Method] The irrigation water of farmland in a river of a certain city was selected as the research object. Liquid-liquid extraction was used to extract polycyclic aromatic hydrocarbons (PAHs) from farmland irrigation water. The gradient elution was performed with high performance liquid chromatography (HPLC) Fluoranthene, pyrene, ■, benzo (k) fluoranthene, benzo (a) pyrene, the seven polycyclic aromatic hydrocarbons content. [Result] The total contents of naphthalene, phenanthrene, fluoranthene and pyrene in farmland irrigation water sample ranged from 0.3901 to 1.7363μg / L, of which the contents of naphthalene, phenanthrene and fluoranthene in 2 ~ 3 rings were higher , Accounting for more than 80% of the total amount of PAHs, while the PAHs content of more than 4 rings is relatively small. [Conclusion] The irrigation water in this farmland had some pollution and needed to be strengthened.