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Research on Low Flow Rate and Voltage Micro Differential Mobility Spectrometry

文献类型：期刊论文

作者Li Shan2; Chen Chi-Lai1; Zhu De-Quan2; Wang Hong-Wei1,3; Liu You-Jiang1,3; Ruan Zhi-Ming1; Yu Jian-Wen1; Zhu Li-Kai1
刊名CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
出版日期2015-12-01
卷号43期号:12页码:1814-1819
关键词Differential Mobility Spectrometry Field Detection Miniaturization Low fLow Rates Low Voltage
文献子类Article
英文摘要Differential mobility spectrometry (DMS), as a standard tool to detect submicron aerosol particles, is gradually expanding its application to molecular detection in recent years. However, the operating voltage (>1 kV) and gas flow (>100 L/min) of DMS are required in charged particles detection, whereas they are too large for field detection of ions. In this work, we designed a UV-DMS device with narrow gap ion drift tube, fabricated by thick film technology and able to operate under low flow rate (<7 L/min) and low voltage (<30 V). Four kinds of volatile organic compounds (VOCs) (acetone, 2-butatone, o-xylene, p-xylene) were chosen as examples to study the resolution, sensitivity and the obtaining of ion mobility. The results showed that the flow rate ratio of sheath gas and carrier gas Q(s)/Q(a) was the key parameter of UV-DMS resolution and sensitivity. The sensitivity of all examples increased significantly with Q(s)/Q(a) from 3 to 9 and then slowly decreased. Meanwhile, the resolution increased markedly with Q(s)/Q(a) from 3 to 6, and reached saturation during 6 to 10. Both sensitivity and resolution became unstable when Q(s)/Q(a) was over 10. The ion mobility deviation between experiment and reference was less than 3%. The detection limit was 0.6 mu g/L with S/N ratio of 3. This work provided a basis for the miniaturization and parameters optimization of DMS in molecular detection.
WOS关键词IONIZATION ; FIELD ; ANALYZER
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000371689300004
资助机构National Natural Science Foundation of China(61374016) ; National Natural Science Foundation of China(61374016) ; National Natural Science Foundation of China(61374016) ; National Natural Science Foundation of China(61374016) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2013213) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2013213) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2013213) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2013213) ; Science and Technology Service program of Chinese Academy of Sciences(KFJ-EW-STS-083) ; Science and Technology Service program of Chinese Academy of Sciences(KFJ-EW-STS-083) ; Science and Technology Service program of Chinese Academy of Sciences(KFJ-EW-STS-083) ; Science and Technology Service program of Chinese Academy of Sciences(KFJ-EW-STS-083) ; National Natural Science Foundation of China(61374016) ; National Natural Science Foundation of China(61374016) ; National Natural Science Foundation of China(61374016) ; National Natural Science Foundation of China(61374016) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2013213) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2013213) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2013213) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2013213) ; Science and Technology Service program of Chinese Academy of Sciences(KFJ-EW-STS-083) ; Science and Technology Service program of Chinese Academy of Sciences(KFJ-EW-STS-083) ; Science and Technology Service program of Chinese Academy of Sciences(KFJ-EW-STS-083) ; Science and Technology Service program of Chinese Academy of Sciences(KFJ-EW-STS-083)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/30923]  
专题合肥物质科学研究院_中科院合肥智能机械研究所
作者单位1.Chinese Acad Sci, Inst Intelligent Machines, State Key Lab Transducer Technol, Hefei 230031, Peoples R China
2.Univ Agr, Sch Engn, Hefei 230030, Peoples R China
3.Univ Sci & Technol China, Dept Automat, Hefei 230027, Peoples R China
推荐引用方式
GB/T 7714		 Li Shan,Chen Chi-Lai,Zhu De-Quan,et al. Research on Low Flow Rate and Voltage Micro Differential Mobility Spectrometry[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2015,43(12):1814-1819.
APA Li Shan.,Chen Chi-Lai.,Zhu De-Quan.,Wang Hong-Wei.,Liu You-Jiang.,...&Zhu Li-Kai.(2015).Research on Low Flow Rate and Voltage Micro Differential Mobility Spectrometry.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,43(12),1814-1819.
MLA Li Shan,et al."Research on Low Flow Rate and Voltage Micro Differential Mobility Spectrometry".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 43.12(2015):1814-1819.

入库方式： OAI收割

来源：合肥物质科学研究院

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