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首页> 外文期刊>Environmental toxicology and chemistry >CALIBRATION AND USE OF THE POLAR ORGANIC CHEMICAL INTEGRATIVE SAMPLER-A CRITICAL REVIEW
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CALIBRATION AND USE OF THE POLAR ORGANIC CHEMICAL INTEGRATIVE SAMPLER-A CRITICAL REVIEW

机译：极性有机化学集成样品的校准和使用-关键评论

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摘要

The implementation of strict environmental quality standards for polar organic priority pollutants poses a challenge for monitoring programs. The polar organic chemical integrative sampler (POCIS) may help to address the challenge of measuring low and fluctuating trace concentrations of such organic contaminants, offering significant advantages over traditional sampling. In the present review, the authors evaluate POCIS calibration methods and factors affecting sampling rates together with reported environmental applications. Over 300 compounds have been shown to accumulate in POCIS, including pesticides, Pharmaceuticals, hormones, and industrial chemicals. Polar organic chemical integrative sampler extracts have been used for both chemical and biological analyses. Several different calibration methods have been described, which makes it difficult to directly compare sampling rates. In addition, despite the fact that some attempts to correlate sampling rates with the properties of target compounds such as log K_(ow) have been met with varying success, an overall model that can predict uptake is lacking. Furthermore, temperature, water flow rates, salinity, pH, and fouling have all been shown to affect uptake; however, there is currently no robust method available for adjusting for these differences. Overall, POCIS has been applied to a wide range of sampling environments and scenarios and has been proven to be a useful screening tool. However, based on the existing literature, a more mechanistic approach is required to increase understanding and thus improve the quantitative nature of the measurements.
机译：极性有机优先污染物的严格环境质量标准的实施对监测计划提出了挑战。极性有机化学综合采样器（POCIS）可能有助于解决测量此类有机污染物的低浓度和波动痕量浓度的挑战，与传统采样相比具有明显优势。在本综述中，作者评估了POCIS校准方法和影响采样率的因素以及报告的环境应用。已显示POCIS中累积了300多种化合物，包括农药，药物，激素和工业化学品。极性有机化学综合采样器提取物已用于化学和生物学分析。已经描述了几种不同的校准方法，这使得难以直接比较采样率。另外，尽管已经成功地进行了一些使采样率与目标化合物的性质相关的尝试，例如log K_（ow），但取得了不同的成功，但仍缺乏可预测吸收的整体模型。此外，温度，水流速，盐度，pH值和结垢都已显示出会影响吸收。但是，目前尚无健壮的方法可用于调整这些差异。总体而言，POCIS已被应用于各种采样环境和场景，并被证明是一种有用的筛选工具。但是，根据现有文献，需要一种更加机械的方法来增加理解，从而改善测量的定量性质。

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