Signal-to-noise ratio enhancement of the compact light-emitting diode-induced fluorescence detector
文献类型：期刊论文
| 作者 | Geng, Xuhui1; Wu, Dapeng1; Wu, Qian1,2; Guan, Yafeng1 |
| 刊名 | talanta
 |
| 出版日期 | 2012-10-15 |
| 卷号 | 100页码:27-31 |
| 关键词 | Light-emitting diode Fluorescence detector SNR enhancement Compact |
| 产权排序 | 1,1 |
| 通讯作者 | 关亚风 |
| 英文摘要 | to enhance the snr (signal-to-noise ratio) of the compact light-emitting diode-induced fluorescence detector (led-fd) ([14]), key parameters including led and its coupling style, pinhole diameter, calibration, and refractive index matching fluid (rimf) were optimized. a 20 ma led with light intensity of 8400 mcd was used as new light source. to optimize pinhole diameter, a theoretical analysis based on a three-dimensional (3d) view of the detection area was proposed and validated experimentally. a calibration principle from the 3d perspective was proposed. the detection flow cell and the collection fiber were adjusted to be coplanar. rimf (glycerol) was applied to enhance snr. the performance of the improved led-fd was evaluated by flow injection analysis (ha). the limit of detection (lod) was determined as 0.15 nm sodium fluorescein (snr=3). compared with our previous work, a five-fold enhancement on the snr was obtained. the lod was about five times higher than that of commercial agilent g1321a fld which employed a xenon pulse lamp. (c) 2012 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, analytical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | capillary-flow systems ; electrophoresis ; performance |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000313773300005 |
| 公开日期 | 2013-10-11 |
| 源URL | [http://159.226.238.44/handle/321008/117962]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Instrumentat & Analyt Chem, Key Lab Separat Sci Analyt Chem CAS, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Geng, Xuhui,Wu, Dapeng,Wu, Qian,et al. Signal-to-noise ratio enhancement of the compact light-emitting diode-induced fluorescence detector[J]. talanta,2012,100:27-31. |
| APA | Geng, Xuhui,Wu, Dapeng,Wu, Qian,&Guan, Yafeng.(2012).Signal-to-noise ratio enhancement of the compact light-emitting diode-induced fluorescence detector.talanta,100,27-31. |
| MLA | Geng, Xuhui,et al."Signal-to-noise ratio enhancement of the compact light-emitting diode-induced fluorescence detector".talanta 100(2012):27-31. |
入库方式： OAI收割
来源：大连化学物理研究所
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