Development of a new passive sampler based on diffusive milligel beads for copper analysis in water

Analytica Chimica Acta
M PerezB Grassl

Abstract

A new passive sampler was designed and characterized for the determination of free copper ion (Cu(2+)) concentration in aqueous solution. Each sampling device was composed of a set of about 30 diffusive milligel (DMG) beads. Milligel beads with incorporated cation exchange resin (Chelex) particles were synthetized using an adapted droplet-based millifluidic process. Beads were assumed to be prolate spheroids, with a diameter of 1.6 mm and an anisotropic factor of 1.4. The milligel was controlled in chemical composition of hydrogel (monomer, cross-linker, initiator and Chelex concentration) and characterized in pore size. Two types of sampling devices were developed containing 7.5% and 15% of Chelex, respectively, and 6 nm pore size. The kinetic curves obtained demonstrated the accumulation of copper in the DMG according to the process described in the literature as absorption (and/or adsorption) and release following the Fick's first law of diffusion. For their use in water monitoring, the typical physico-chemical characteristics of the samplers, i.e. the mass-transfer coefficient (k0) and the sampler-water partition coefficient (Ksw), were determined based on a static exposure design. In order to determine the copper concentra...Continue Reading

References

Jan 5, 2002·Environmental Science & Technology·C MurdockH Zhang
Jan 12, 2002·Journal of Environmental Monitoring : JEM·L B PerssonR Greenwood
Oct 23, 2003·Analytical Chemistry·Oyvind Aaberg GarmoTrond Peder Flaten
Jun 23, 2004·The Science of the Total Environment·Vera I SlaveykovaKevin J Wilkinson
Nov 2, 2004·Analytical and Bioanalytical Chemistry·Jacek NamieśnikAndrzej Wasik
Nov 2, 2006·Analytical and Bioanalytical Chemistry·Graham A MillsRichard Greenwood
Oct 16, 2007·Analytica Chimica Acta·Agata Kot-WasikJacek Namieśnik
Nov 6, 2009·Journal of Environmental Monitoring : JEM·Graham A MillsTomás Ocelka
Sep 23, 2011·Chemosphere·Stuart L SimpsonDavid A Spadaro
Feb 1, 1984·Environmental Science & Technology·S BanerjeeD P O'Grady
Jul 26, 2012·Environmental Science & Technology·Stuart L SimpsonDianne F Jolley

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