监测井施工中使用的某些材料，甚至用于采集样本的容器，都可以改变用于分析地下水质量的样本。从配送系统采集的样本也可能出现类似问题。需要进一步研究，以完善分析程序，从而获得与地下水中有机化合物有关的实际现场数据。相关材料包括聚氯乙烯（PVC）和其他用于井套管和管道的塑料。介绍了地下水监测井采样的五种基本类型的采样装置。概述了地下水有机采样的建议。包括18个参考文献、图表。

Samples taken for analysis of groundwater quality can be altered by certain materials used in the construction of monitoring wells and even by the containers used to collect samples. Similar problems can occur with samples taken from a distribution system. Further research is needed to refine analytical procedures so that actual in situ data pertaining to organic compounds in groundwater can be obtained. Materials of concern include polyvinyl chloride (PVC) and other plastics used in well casings and pipes. Five basic types of sampling devices for collection of samples from groundwater monitoring wells are described. Recommendations for organic sampling of groundwater are outlined. Includes 18 references, figures.