中文摘要：

对3种类型蚊香（有烟蚊香、微烟蚊香和无烟蚊香）原料、灰烬及烟气样品经索式提取、K-D浓缩和硅胶层析纯化后,采用GC-MS分析其USEPA推荐的16种优控多环芳烃的含量.结果表明,有烟蚊香和微烟蚊香烟气中多环芳烃总含量高于原料中的含量,无烟蚊香则相反.有烟蚊香和微烟蚊香原料以3环和4环多环芳烃为主,无烟蚊香原料以2环和3环多环芳烃为主,3种类型蚊香灰烬和烟气中多环芳烃均以2环、3环和4环化合物为主.通过对比蚊香燃烧前、后样品中多环芳烃的毒性,发现同原料相比,有烟蚊香燃烧后烟气中多环芳烃的毒性显著增加,而微烟蚊香和无烟蚊香则明显减少.

英文摘要：

For the determination of 16 priority-controlled polycyclic aromatic hydrocarbons（PAHs） recommended by US EPA in raw material, ash and smoke of three types of mosquito coils （ smoke mosquito coil, micro-smoke mosquito coil and smokeless mosquito coil） by GC-MS, the samples were extracted in a Soxhlet extractor, concentrated in a K-D apparatus, and separated in a silica gel clean-up column. The results show that the total PAHs contents in the smoke are higher than those in the raw material for smoke and micro-smoke mosquito coils, while the status reverse for smokeless mosquito coil. PAHs in the raw material of smoke and micro-smoke mosquito coils are dominated by 3-ring and 4-ring PAHs, while 2-ring and 3-ring PAHs are predominant in the raw material of smokeless mosquito coil. Both the ash samples and smoke samples of three mosquito coils are dominated by 2-ring, 3-ring and 4-ring PAHs. By comparison of toxic parameters between smoke and raw material of mosquito coils, the toxic equivalent of PAHs in the smoke increases obviously for smoke mosquito coil, while the status reverse for micro-smoke and smokeless mosquito coils.