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|a pmid:22589101
024 7 _ |2 DOI
|a 10.1002/elps.201100626
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041 _ _ |a eng
082 _ _ |a 570
084 _ _ |2 WoS
|a Biochemical Research Methods
084 _ _ |2 WoS
|a Chemistry, Analytical
100 1 _ |0 P:(DE-Juel1)VDB89837
|a Liu, B.
|b 0
|u FZJ
245 _ _ |a Determination of heavy metal ions by microchip capillary electrophoresis coupled with contactless conductivity detection
260 _ _ |a Weinheim
|b Wiley-Blackwell
|c 2012
300 _ _ |a 1247 - 1250
336 7 _ |a Journal Article
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440 _ 0 |0 1792
|a Electrophoresis
|v 33
|x 0173-0835
|y 8
500 _ _ |a This work was supported by grants from the Science and Technology Commission of Shanghai Municipality (Grants No. 09JC1416500, 09391911500, 10391901600, 1052nm06100), the China Scholarship Council (CSC), the German Helmholtz Association, and the German BMBF at DLR (Grant CHW09/009).
520 _ _ |a An integrated detection circuitry based on a lock-in amplifier was designed for contactless conductivity determination of heavy metals. Combined with a simple-structure electrophoresis microchip, the detection system is successfully utilized for the separation and determination of various heavy metals. The influences of the running buffer and detection conditions on the response of the detector have been investigated. Six millimole 2-morpholinoethanesulfonic acid + histidine were selected as buffer for its stable baseline and high sensitivity. The best signals were recorded with a frequency of 38 kHz and 20 V(pp). The results showed that Mn(2+), Cd(2+), Co(2+), and Cu(2+) can be successfully separated and detected within 100 s by our system. The detection limits for five heavy metals (Mn(2+), Pb(2+), Cd(2+), Co(2+), and Cu(2+)) were determined to range from about 0.7 to 5.4 μM. This microchip system performs a crucial step toward the realization of a simple, inexpensive, and portable analytical device for metal analysis.
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588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 2 |2 MeSH
|a Electric Conductivity
650 _ 2 |2 MeSH
|a Electrophoresis, Microchip: instrumentation
650 _ 2 |2 MeSH
|a Electrophoresis, Microchip: methods
650 _ 2 |2 MeSH
|a Limit of Detection
650 _ 2 |2 MeSH
|a Metals, Heavy: analysis
650 _ 7 |0 0
|2 NLM Chemicals
|a Metals, Heavy
650 _ 7 |2 WoSType
|a J
653 2 0 |2 Author
|a Contactless conductivity detection
653 2 0 |2 Author
|a Heavy metals
653 2 0 |2 Author
|a Microchip capillary electrophoresis
700 1 _ |0 P:(DE-Juel1)VDB5476
|a Zhang, Y.
|b 1
|u FZJ
700 1 _ |0 P:(DE-Juel1)128707
|a Mayer, D.
|b 2
|u FZJ
700 1 _ |0 P:(DE-Juel1)128697
|a Krause, H.-J.
|b 3
|u FZJ
700 1 _ |0 P:(DE-HGF)0
|a Jin, Q
|b 4
700 1 _ |0 P:(DE-HGF)0
|a Zhao, J.
|b 5
700 1 _ |0 P:(DE-Juel1)128713
|a Offenhäusser, A.
|b 6
|u FZJ
700 1 _ |0 P:(DE-HGF)0
|a Xu, Y.
|b 7
773 _ _ |0 PERI:(DE-600)1475486-1
|a 10.1002/elps.201100626
|g Vol. 33, p. 1247 - 1250
|p 1247 - 1250
|q 33<1247 - 1250
|t Electrophoresis
|v 33
|x 0173-0835
|y 2012
856 7 _ |u http://dx.doi.org/10.1002/elps.201100626
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