OALib Journal期刊
ISSN: 2333-9721
费用:99美元
|
|
|
在线测量大气挥发性有机物的冷阱浓缩/热解析仪的研制
, PP. 1482-1486
Keywords: 挥发性有机物,吸附浓缩,热解析,在线检测
Abstract:
研制了一种只用-10℃低温的冷阱浓缩/热解析仪,用于大气中C2和C2以上挥发性有机物的在线检测。以碳分子筛TDX-01和石墨化炭黑为吸附剂,将大气挥发性有机物富集在吸附管内,通过对吸附管直接加热快速热解析后,样品随载气直接进入气相色谱仪进行分离分析,不需二级冷阱或者二次浓缩。对10种挥发性有机物的检测显示,测定结果的相对标准偏差均小于5%;线性相关系数均大于0.99;检出限为14×10-12~52×10-12(V/V)。相比与传统的采用液氮或者半导体制冷为冷源的热解析仪,本装置具有结构简单,体积小巧,功耗低等优点,适用于对大气痕量挥发性有机物的准确、快速分析。
References
[1] | 1 Laowagul W,Yoshizumi K.Atmospheric Environment,2009,43(12):2052~2059
|
[2] | 4 Helmis C G,Assimakopoulos V D,Flocas H A,Stathopoulou O I,Sgouros G,Harzaki M.Environmental Monito-ring and Assessment,2009,148(1):47~60
|
[3] | 7 Ras M R,Borrull F,MarcéR M.Trends in Analytical Chemistry,2009,28(3):347~361
|
[4] | 9 Ciccioli P,Brancaleoni E,Mabilia R,Cecinato A.J.Chromatogr.A,1997,777(2):267~274
|
[5] | 11 Holdren M,Danhof S,Grassi M,Stets J,Keigley B,Woodruff V,Sxrugli A.Chem.,1998,70(22):4836~4840
|
[6] | 2 Wu C H,Feng C T,Lo Y S,Lin T Y,Lo J G.Chemosphere,2004,56(1):71~80
|
[7] | 3 ZHANG Nian-Hua,SONG Guo-Liang,SHEN Xiang-Hong,YING Ying,ZHAO Yong-Xin,TANG Jun(张念华,宋国良,沈向红,应英,赵永信,汤鋆).Chinese J.Anal.Chem.(分析化学),2010,38(3):362~366
|
[8] | 5 Chien Y C,Yin K G.Journal of Environmental Monitoring,2009,11(5):1013~1019
|
[9] | 6 Harper M.J.Chromatogr.A,2000,885(1-2):129~151
|
[10] | 8 Plass-Dülmer C,Michl K,Ruf R,Berresheim H.J.Chromatogr.A,2002,953(1-2):175~197
|
[11] | 10 Whalley L K,Lewis A C,McQuaid J B,Purivs R M,Lee J D,Stemmler K,Zellweger C,Ridgeon P.Journal ofEnvironmental Monitoring,2004,6(3):234~241
|
[12] | 12 Wevill D J,Carpenter L J.Analyst,2004,129(7):634~638
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|