中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Long-term sub second-response monitoring of gaseous ammonia in ambient air by positive inhaling ion mobility spectrometry
作者: Huang, Wei1;  Wang, Weiguo1;  Chen, Chuang1;  Li, Mei1, 3;  Peng, Liying1, 3;  Li, Hang2, 3;  Liu, Jiwei1, 4;  Hou, Keyong1;  Li, Haiyang1
关键词: Ion mobility spectrometry ;  Ammonia ;  Fast response ;  Sub-second time scale ;  Long-term ;  Monitoring
刊名: TALANTA
发表日期: 2017-12-01
DOI: 10.1016/j.talanta.2017.07.076
卷: 175, 页:522-527
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: A real-time dynamic measurements of ammonia (NH3) is crucial for understanding the atmospheric nucleation process. A novel method was developed for on line monitoring at the sub-second time scale for the gaseous ammonia in ambient air for months, based on a positive inhaling ion mobility spectrometry (IMS) with a Ni-63 ion source. The selective detection of NH3 was achieved using a high resolution IMS with an optimization of the drift tube temperature above 150 degrees C. This method improved the peak-to-peak resolution significantly, thus avoided the interferences of the adjacent peaks to the quantitative analysis of NH3. The time resolution of the IMS was less than 0.1 s at a data averaging of 10 times. The limit of detection (LOD) achieved at sub-ppb level while a linear response of peak intensity versus concentration of NH3 in the range of 10-60 ppb and 60-400 ppb were obtained. The relative standard deviations (RSD), the confidence level and the errors were 1.06%, 95% and +/- 0.21 ppb by measuring 100 ppb NH3 for 100 times. The effect of ambient humidity could be greatly reduced by using the drift temperature of over 150 degrees C. At last, the application of measuring the NH3 concentration evolutions of Dalian city was performed from June 19 to December 3 in 2015. The results illustrated a potential method of using IMS for a real-time measuring atmospheric NH3 at an unprecedented accuracy and sensitivity with long-term stability.
关键词[WOS]: IONIZATION MASS-SPECTROMETRY ;  BRADBURY-NIELSEN-GATE ;  ATMOSPHERIC AMMONIA ;  ONLINE MEASUREMENT ;  NITROGEN-DIOXIDE ;  HIGH-RESOLUTION ;  BREATH AMMONIA ;  AMINES ;  GAS ;  SPECTROSCOPY
语种: 英语
WOS记录号: WOS:000412033100070
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/150185
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Key Lab Environm Opt & Technol, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Liaoning Normal Univ, Dalian 116029, Peoples R China

Recommended Citation:
Huang, Wei,Wang, Weiguo,Chen, Chuang,et al. Long-term sub second-response monitoring of gaseous ammonia in ambient air by positive inhaling ion mobility spectrometry[J]. TALANTA,2017,175:522-527.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Huang, Wei]'s Articles
 [Wang, Weiguo]'s Articles
 [Chen, Chuang]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Huang, Wei]‘s Articles
 [Wang, Weiguo]‘s Articles
 [Chen, Chuang]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace