Keywords Air toxic substance;Isopropyl alcohol;Butyl alcohol;Amyl alcohol;TWA concentration;Activated charcoal tube;Dissolvent desorption;Gas chromatography;

• 空气有毒物质;异丙醇;丁醇;异戊醇;TWA浓度;活性炭管;溶剂解吸;气相色谱;