热脱附-气相色谱/质谱法测定船用涂料释放气体  

Determination of Offgassing Released from Paint Used in Ship by Thermal Desorption-Gas Chromatography-Mass Spectrometry

作　　者：韦桂欢[1,2] 姚芳莲[1] 张洪彬[2] 顾秀杰[2] 

机构地区：[1]天津大学化工学院,天津300072 [2]中国船舶重工集团公司第七一八研究所,河北邯郸056027

出　　处：《舰船防化》2007年第5期11-16,共6页

摘　　要：船舶舱室中使用大量涂料,这些涂料在使用过程中不断地向舱室内释放有害气体,从而使船舶环境舱舱室空气受到污染。本文建立了热脱附-气相色谱/质谱法测定船舶用涂料释放有害气体的检测方法。将船用涂料刷于铝板上并晾干30d后,置于不锈钢密闭容器中进行密封,在25℃、50℃温度下进行加热并保持72h。以填装TenaxTA吸附剂的采样管对密闭容器中释放的有害气体进行富集,以热脱附系统对浓缩采样管进行脱附,气相色谱/质谱仪（GC/MS）进行分析,共定性检测到烃类、醛类、酮类等挥发性有机物。A large number of paints are used in the cabin of ship. Some paints may continuously emit toxic gas and atmosphere in the cabin of warship may be polluted. A new method for the determination of offgassing released from the paint which used in cabin of ship by thermal desorption-gas chromatography-mass spectrometry was established. The paint brushed on Aluminum board was exposured to air for drying for 30 days. Then the Aluminum board was taken into the sealed cabin made of stainless steel and sealed. The sealed cabin was kept at 25℃ and 50℃ for 72 hours. The sample of offgassing in the sealed cabin was concentrated by sample tube filled with tenax TA sorbent. The analysis was carried out by thermal desorption-gas chromatography-mass Spectrometry with DB-5 capillary column. The components of offgassing released from the epoxy paint consist of hydrocarbon, aldehyde, ketone and etc.

关 键 词：测定 涂料 热脱附-气相色谱/质谱法 船舶 释放 有害气体 

分 类 号：O656[理学—分析化学] O657[理学—化学]