Abstract
Different methods for construction of contactless conductivity detectors (CCD) for microchip electrophoresis device are described in this review. This includes three main schemes of CCD for microchips, such as (i) the detection electrodes are placed along the microchannel from outside of the microchip and they are insulated from the channel by the cover lid of microchip device; (ii) the electrodes are placed across of the microchannel in the same plane and they are insulated by thin separation channel walls and (iii) electrodes are buried in widened part of microchannel and they are insulated from solution by ultrathin layer of silicon carbide. Specific issues related to the CCD on microfluidics are discussed, such as an influence of shape and magnitude of ac voltage and placement of electrodes and their insulation. Various applications for security, pharmacological, bioassays and food analysis purposes are described.
| Original language | English |
|---|---|
| Pages (from-to) | 358-364 |
| Number of pages | 7 |
| Journal | Talanta |
| Volume | 74 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2007 Dec 15 |
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All Science Journal Classification (ASJC) codes
- Analytical Chemistry
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Contactless conductivity detection for microfluidics : Designs and applications. / Pumera, Martin.
In: Talanta, Vol. 74, No. 3, 15.12.2007, p. 358-364.Research output: Contribution to journal › Review article
TY - JOUR
T1 - Contactless conductivity detection for microfluidics
T2 - Designs and applications
AU - Pumera, Martin
PY - 2007/12/15
Y1 - 2007/12/15
N2 - Different methods for construction of contactless conductivity detectors (CCD) for microchip electrophoresis device are described in this review. This includes three main schemes of CCD for microchips, such as (i) the detection electrodes are placed along the microchannel from outside of the microchip and they are insulated from the channel by the cover lid of microchip device; (ii) the electrodes are placed across of the microchannel in the same plane and they are insulated by thin separation channel walls and (iii) electrodes are buried in widened part of microchannel and they are insulated from solution by ultrathin layer of silicon carbide. Specific issues related to the CCD on microfluidics are discussed, such as an influence of shape and magnitude of ac voltage and placement of electrodes and their insulation. Various applications for security, pharmacological, bioassays and food analysis purposes are described.
AB - Different methods for construction of contactless conductivity detectors (CCD) for microchip electrophoresis device are described in this review. This includes three main schemes of CCD for microchips, such as (i) the detection electrodes are placed along the microchannel from outside of the microchip and they are insulated from the channel by the cover lid of microchip device; (ii) the electrodes are placed across of the microchannel in the same plane and they are insulated by thin separation channel walls and (iii) electrodes are buried in widened part of microchannel and they are insulated from solution by ultrathin layer of silicon carbide. Specific issues related to the CCD on microfluidics are discussed, such as an influence of shape and magnitude of ac voltage and placement of electrodes and their insulation. Various applications for security, pharmacological, bioassays and food analysis purposes are described.
UR - http://www.scopus.com/inward/record.url?scp=36549062555&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=36549062555&partnerID=8YFLogxK
U2 - 10.1016/j.talanta.2007.05.058
DO - 10.1016/j.talanta.2007.05.058
M3 - Review article
C2 - 18371649
AN - SCOPUS:36549062555
VL - 74
SP - 358
EP - 364
JO - Talanta
JF - Talanta
SN - 0039-9140
IS - 3
ER -