Methods According to EPA1663 and EPA1668A,PCDD/Fs and PCBs were extracted from fish by Soxhlet extraction,cleaned up by FMS and quantified by HRGC/HRMS-MID,using isotope dilution metholdogy.

• 方法 参照美国EPA16 13及EPA16 6 8A方法 ,采用索式抽提和自动纯化系统(FMS)对鱼体中的PCDD/Fs及PCBs进行纯化和富集、用同位素稀释气相色谱与高分辨质谱联用 -多离子检测方法检测。