Research for the clarification of new PCB pollutants and the establishment of a quantitative evaluation method

作为一种准确测定颜料中多氯联苯的方法，作者讨论了用亚砜色谱柱进行前处理，用高分辨气相色谱-高分辨质谱仪测定多氯联苯的方法，并使其具有良好的收集率而易于定量。利用这种分析方法，调查了各种颜料等多氯联苯的实际污染情况，从偶氮染料、酞菁等颜料中检出多氯联苯，发现有些材料的浓度超过50 mg/kg。多氯联苯的同类模式与多氯联苯产品的不同。在偶氮颜料中特征地检测到#11和#52，而在酞菁颜料中特征地检测到#209。作者将这一模式应用于基于化学质量平衡的统计分析，并开发了一种定量评估环境中颜料来源的多氯联苯的方法。

As a method for precisely measuring PCBs in pigments, the authors discussed a method of conducting pretreatment with a sulfoxide column and measuring PCBs with HRGC-HRMS, and made it possible to readily quantify them with a good collection rate. By using this analysis method, the authors investigated the actual condition of the pollution due to the PCBs included in various pigments, etc. PCBs were detected from azo and phthalocyanine pigments, etc., and it was found that concentration exceeds 50 mg/kg for some materials. The congener patterns of PCBs were different from those of PCB products. #11 and #52 were characteristically detected in azo pigments, while #209 was characteristically detected in phthalocyanine pigments. The authors applied this pattern to the statistical analysis based on the chemical mass balance, and developed a method for quantitatively assessing pigment-derived PCBs in the environment.