A novel ion detector aiming at the homogeneous of drift gas
A novel ion detector aiming at the homogeneous of drift gas
复制标题
一种针对漂移气体均匀性的新型离子检测器
DOI：
10.1007/s12127-017-0218-7
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发表时间：
2017-06
影响因子：
--
通讯作者：
Zhanfeng Zhao
中科院分区：
文献类型：
--
作者：
Peihe Jiang;Zhiquan Zhou;Zhanfeng Zhao
In standalone ion mobility spectrometry (IMS) instruments, the effect of drift gas turbulence reduces the sensitivity and resolution of the instrument. A traditional ion detector constructed with a Faraday plate and used to detect ions in an IMS is positioned at the end of the drift region. Drift gas flowing through this detector may introduce turbulence near the detector, possibly affecting the sensitivity and resolution of the device. To address this problem, a novel Faraday detector with a double layer structure was constructed. A number of dense and staggered holes were created on each layer of the detector. This design enabled the drift gas to pass through the holes of the detector, and the staggered nature of holes in the detector ensured that the ions could be detected. Theoretical simulations were conducted using the finite element method to obtain velocity distributions for both a standard Faraday detector and the modified Faraday detector. The results indicated that the novel ion detector created a homogenous gas under at high inlet flow rate while turbulence was still evident for the traditional Faraday detector. When the inlet flow rate was 1000 mL/min, the range of the unstable region of the drift gas in the axis of the drift tube with the novel ion detector was reduced by 97% relative to that for the traditional detector. The data suggests that due to such gains, sensitivity and resolution may be improved for standalone IMS instruments.
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DOI：
10.1007/s12127-016-0209-0
发表时间：
2016-11
影响因子：
--
作者：
Han Fenglei;Zhang He;Peng Liying;Li Haiyang
通讯作者：
Li Haiyang
影响因子：
7.4
作者：
HILL H H JR;SIEMS W F;MCMINN D G
通讯作者：
MCMINN D G
DOI：
10.1002/9781119122357.ch14
发表时间：
2008-03
期刊：
Fundamentals of Analytical Toxicology
影响因子：
--
作者：
Джонатан Ричард Аткинсон
通讯作者：
Джонатан Ричард Аткинсон
影响因子：
1.6
作者：
Tabrizchi, M;Khayamian, T;Taj, N
通讯作者：
Taj, N
DOI：
10.25148/etd.fi10041618
发表时间：
2010
期刊：
--
影响因子：
--
作者：
Hanh Lai
通讯作者：
Hanh Lai