| Title: | Quartz crystal microbalance sensor array for the detection of volatile organic compounds |
| Author(s): | Xu X; Cang H; Li C; Zhao ZK; Li H; |
| Address: | "Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China" |
| DOI: | 10.1016/j.talanta.2008.12.031 |
| ISSN/ISBN: | 1873-3573 (Electronic) 0039-9140 (Linking) |
| Abstract: | "A sensor array system consisting of five quartz crystal microbalance (QCM) sensors (four for measuring and one for reference) and an artificial neural network (ANN) method is presented for on-line detection of volatile organic compounds. Three ionic liquids, 1-butyl-3-methylimidazolium chloride (C(4)mimCl), 1-butyl-3-methylimidazolium hexafluorophosphate (C(4)mimPF(6)), 1-dedocyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (C(4)mimNTf(2)), and silicone oil II, which is widely used as gas chromatographic stationary phase, have been selected as sensitive coatings on the quartz surface allowing the sensor array effective to identify chemical vapors, such as toluene, ethanol, acetone and dichloromethane. The success rate for the qualitative recognition reached 100%. Quantitative analysis has also been investigated, within the concentration range of 0.6-6.1 mg/L for toluene, 0.9-7.5 mg/L for ethanol, 2.8-117 mg/L for dichloromethane, and 0.7-38 mg/L for acetone, with a prediction error lower than 8%" |
| Keywords: | Acetone/analysis Ethanol/analysis Ionic Liquids Methylene Chloride/analysis *Micro-Electrical-Mechanical Systems Toluene/analysis Volatile Organic Compounds/*analysis; |
| Notes: | "MedlineXu, Xiuming Cang, Huaiwen Li, Changzhi Zhao, Zongbao K Li, Haiyang eng Evaluation Study Netherlands 2009/03/10 Talanta. 2009 May 15; 78(3):711-6. doi: 10.1016/j.talanta.2008.12.031. Epub 2008 Dec 24" |
