气化焦中多环芳烃(PAHs)和苯系物(BTEX)的测定
气化焦的特性——筛选的结果Characteristics of gasification chars – Results from a screening campaignThe dry, comminuted sample (1 g) was extracted with 100 mL of toluene for 4 h in reflux (Soxtherm,Gerhardt Analytical Systems). The extract was used for GC-MS analysis (Agilent GC 7890 A MS 5975C) without further purification无需进一步净化