Congener-specific determination of polyhalogenated naphthalenes for prediction of their environmental fate

本研究的目的是利用二维气相色谱质谱法（GCxGC/MS）对多氯萘（PCN）进行同源特异性测定，以预测其环境命运。结果表明，所建立的GCxGC/MS方法可分离出其中的73个PCN异构体。此外，将该方法应用于多个环境样本中，获得了同类特异性数据，提高了指纹识别和风险评估的准确性。该方法适用于多溴化萘（PBN）的分析。从本研究的结果来看，可以进行PCN/PBN的综合测定，此后，有望将该方法的范围扩大到包括PCN/PBN在内的许多相关环境污染物。

The aim of this study was to perform congener-specific determination of polychlorinated naphthalenes (PCN) using two-dimensional gas chromatography mass spectrometry (GCxGC/MS) for prediction of their environmental fate. As a result, 73 PCN isomers among all the 75 isomers could be separated with developed GCxGC/MS method. In addition, the accuracy of fingerprint and risk assessment was enhanced based on congener-specific data obtained by applying the developed method to several environmental samples. Moreover, this method was applicable to analysis of polybrominated naphthalenes (PBN). From the results in this study, comprehensive determinations of PCN/PBN could be performed, thereafter, it is expected that the scope of the method will be expanded to many related environmental contaminants including PCN/PBN.