Passive micromixer for luminol-peroxide chemiluminescence detection
Lok, Khoi Seng
Kwok, Yien Chian
Date of Issue2011
School of Mechanical and Aerospace Engineering
This paper reports a microchip with an integrated passive micromixer based on chaotic advection. The micromixer with staggered herringbone structures was used for luminol-peroxide chemiluminescence detection. The micromixer was examined to assess its suitability for chemiluminescence reaction. The relationship between the flow rate and the location of maximum chemiluminescence intensity was investigated. The light intensity was detected using an optical fiber attached along the mixing channel and a photon detector. A linear correlation between chemiluminescence intensity and the concentration of cobalt(II) ions or hydrogen peroxide was observed. This microchip has a potential application in environmental monitoring for industries involved in heavy metals and in medical diagnostics.
© 2011 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Analyst, The Royal Society of Chemistry 2011. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1039/c1an15280g].