| 光谱学与光谱分析 |
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| Chip-Based Capillary Electrophoresis On-Line Coupled with Atomic Fluorescence Spectrometry and Its Application to Rapid Speciation Analysis |
| LI Feng1, WANG Dong-dong1, YAN Xiu-ping1*, SU Rong-guo2, LIN Jin-ming2 |
1. Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, China
2. Research Center for Eco-Environment, Chinese Academy of Sciences, Beijing 100085, China |
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Abstract Chip-based capillary electrophoresis (chip-CE) is under rapid progress due to its high efficiency, fast separation, little sample consumption and integration. Due to the short optical path (30-50 μm), the conventional UV absorbance cannot satisfy the chip detection needs. Atomic fluorescence spectrometer(AFS) is a selective and sensitive detector for hydride-forming elements. With the strong points of low cost and easy operation, AFS is attractive as an ideal detector of chip-CE for mercury, arsenic and selenium, etc. A few important practical aspects of coupling chip-CE to AFS are critically discussed. These include the design of the chip, chip-AFS interface, gas-liquid separator, AFS atomizer, and elimination of the effect of backpressure on separation. The application of the developed chip-CE-AFS to the mercury speciation analysis is highlighted.
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Received: 2005-05-16
Accepted: 2005-08-09
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Corresponding Authors:
YAN Xiu-ping
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| Cite this article: |
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LI Feng,WANG Dong-dong,YAN Xiu-ping, et al. Chip-Based Capillary Electrophoresis On-Line Coupled with Atomic Fluorescence Spectrometry and Its Application to Rapid Speciation Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(06): 1158-1161.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2006/V26/I06/1158 |
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