地表水中的有机氯农药和多氯联苯分析技术研究进展  

Summarize of Study on Determination of Organochlorine Pesticides and Polychlorobiphenyl in Surface Water

作　　者：蒋雯菁[1] 谢振伟 但德忠[3] 

机构地区：[1]四川省工业环境监测研究院,四川成都610041 [2]四川省环境监测总站,四川成都610041 [3]四川大学环境科学与工程系,四川成都610065

出　　处：《现代科学仪器》2015年第5期26-33,共8页Modern Scientific Instruments

摘　　要：本文对国内外地表水中的有机氯农药和多氯联苯分析技术进行了研究，在预处理方法和分析技术两方面进行了重点阐述。本文引用了大量的文献得出：液液萃取简单，稳定，成本低，易于普及，回收率和重现性好。但处理水样量有限、富集倍数低，有机溶剂用量大，易产生二次污染。固相革取法不发生乳化，革取结果充分稳定，利于实现标准化，选择性强，使用有机溶剂少。但费时长，易发生堵塞，操作复杂，成本较高。固相微萃取自动化高，分析过程不使用任何有机溶剂，但回收率和重现性受平衡限制。经过大量的文献分析得到，GC-MS法灵敏度更高，检出限更低，分析数据更可靠，因此被广泛地用于环境样品中的有机物质的痕量和超痕量分析。In this paper, analysis techniques of the organochlorine pesticides and polychlorinated biphenyls in surface water at home and abroad are studied, respectively in the two aspects of pretreatment methods and analysis techniques for detail. Comparing the paper quoted a large number of literature research in the paper： for liquid-liquid extraction, the procedure is simple, stable and the cost is low. So it is easy to popularize. Recovery rate and reproducibility are good. But this method that can handle water quantity is limited. The enrichment ratio is not enough, the dosage of organic solvent is too big, and easy to produce secondary pollution. Solid phase extraction without emulsifying, extraction results fully stable, is conducive to the standardization, selectivity, less use of organic solvents. Deficiency is time-consuming long, prone to congestion, complex operation, high cost. Solid phase microextraction automation is high, the analysis process without using any organic solvent, but the recovery and reproducibility restricted by balance. Through a large number of literature analysis, GC - MS method have higher sensitivity and lower detection limit, more reliable analysis data, thus is widely used in the environmental samples in organic material trace and ultra trace analysis.

关 键 词：地表水 有机氯农药 多氯联苯 综述 

分 类 号：O652.62[理学—分析化学]