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首页> 外文会议>Environmental security assessment and management of obsolete pesticides in Southeast Europe >Analytical Approaches for Sampling and Sample Preparation for Pesticides Analysis in Environmental, Food and Biological Samples
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Analytical Approaches for Sampling and Sample Preparation for Pesticides Analysis in Environmental, Food and Biological Samples

机译：环境，食品和生物样品中农药分析的采样和样品前处理的分析方法

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摘要

Residues of pesticides, especially organochlorine pesticides (OCPs) in sediment and aquatic biota have been an environmental concern since the 1960s. Widely used in agriculture in the past, most of OCPs are resistant to photochemical, biological and chemical degradation for a long period of time. For their determination in different environmental media, sampling and sample preparation represents a time consuming stage, but a key factor in the entire pesticides trace analysis procedure. Scientific efforts directed towards the sample pretreatment issue are focused on developing methods for enriching and isolating components present in complex sample matrices. Due to the differences of pesticides properties (volatility, polarity), to the complexity of the sample matrix and to the required degree of preconcentration, there is no unique strategy for the sample preparation. This chapter presents different techniques available for samples preparation for pesticide analysis in environment, in food or in biological samples.
机译：自1960年代以来，沉积物和水生生物中农药的残留，特别是有机氯农药（OCP）的残留就成为环境问题。过去，OCP在农业中广泛使用，大多数对光化学，生物和化学降解具有很强的抵抗力。为了在不同的环境介质中进行测定，采样和样品制备是一个耗时的过程，但这是整个农药痕量分析过程中的关键因素。针对样品预处理问题的科学努力集中在开发用于富集和分离复杂样品基质中存在的组分的方法。由于农药特性（挥发性，极性），样品基质的复杂性和所需的预浓缩程度不同，因此没有独特的样品制备策略。本章介绍了可用于环境，食品或生物样品中农药分析样品制备的不同技术。

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