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Integrating independent silica monolith electroosmotic pumps for reagent delivery and sample preconcentration in a µ-TAS device

Citation

Nie, F-Q and Paull, B and Macka, M, Integrating independent silica monolith electroosmotic pumps for reagent delivery and sample preconcentration in a µ-TAS device, Micro total analysis systems: proceedings of AuTAS 2007, 7-11 October 2007, Paris, France, pp. 829-831. ISBN 9780979806407 (2008) [Conference Extract]


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Abstract

This 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.

Item Details

Item Type:Conference Extract
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Separation Science
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Paull, B (Professor Brett Paull)
Author:Macka, M (Professor Mirek Macka)
ID Code:71641
Year Published:2008
Deposited By:Research Division
Deposited On:2011-07-26
Last Modified:2011-08-18
Downloads:1 View Download Statistics

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