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Integrating independent silica monolith electroosmotic pumps for reagent delivery and sample preconcentration in a µ-TAS device
conference contribution
posted on 2023-05-24, 10:38 authored by Nie, F-Q, Brett PaullBrett Paull, Miroslav MackaMiroslav MackaThis microfluidic chip-based total analysis system (μ�TAS) for flow injection analysis (μ�FIA) integrates two independent monolithic electroosmotic pumps (EOPs), one of which also works as a column for on-chip micro-solid phase extraction (μ�SPE) preconcentration. Off-chip photometric detection with light emitting diodes (LEDs) and contactless conductometric detection (C4D) were used. The μ�TAS device was demonstrated for trace inorganic cation analysis where an improvement of 100 times in the limit of detection (LOD) for Ca2+ down to 0.01 mmol/L was achieved using the conductometric detector.
History
Publication title
Micro total analysis systems: proceedings of µTAS 2007Editors
Jean-Louis ViovyPagination
829-831ISBN
9780979806407Department/School
School of Natural SciencesPublisher
Chemical and Biological Microsystems SocietyPlace of publication
San Diego, USAEvent title
Eleventh International Conference on Miniaturized Systems for Chemistry and Life SciencesEvent Venue
Paris, FranceDate of Event (Start Date)
2007-10-07Date of Event (End Date)
2007-10-11Repository Status
- Restricted