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Rapid field-screening method for PCBs

机译：PCB的快速现场筛选方法

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Abstract: The analysis of polychlorinated biphenyls (PCBs) generally requires selectivity and sensitivity. Even after cleanup, PCBs are usually at ultratrace levels in field samples, mixed in with other halocarbons, hydrocarbons, lipids, etc. The levels of PCBs typically found in water, soil, tissue, food, biota, and other matrices of interest are in the parts per billion (ppb) range. Most current measurement techniques for PCBs require chromatographic separations and are not practical for routine analysis. There is a strong need to have rapid and simple techniques to screen for PCBs under field conditions. The use of field screening analysis allows rapid decisions in remedial actions and reduces the need for sample preparations and time- consuming laboratory analyses. Field screening techniques also reduce the cost of clean-up operations. This paper describes a simple screening technique based on room temperature phosphorescence (RTP) and provides an overview of both this analytical procedure to detect trace levels of PCBs in environmental samples.!6
机译：摘要：多氯联苯（PCB）的分析通常需要选择性和灵敏度。即使清除后，现场样品中的多氯联苯通常仍处于超痕量水平，并与其他卤代烃，碳氢化合物，脂质等混合在一起。十亿分之一（ppb）的范围。当前用于PCB的大多数测量技术都需要色谱分离，并且不适合常规分析。迫切需要一种快速简单的技术来在现场条件下对PCB进行屏蔽。现场筛选分析的使用可以快速决定补救措施，并减少了样品制备和费时的实验室分析的需要。现场筛选技术还降低了清理操作的成本。本文介绍了一种基于室温磷光（RTP）的简单筛选技术，并对这两种分析程序进行了概述，以检测环境样品中的痕量PCB。6

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