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http://dx.doi.org/10.9713/kcer.2015.53.2.243

Preparation of Dithizone Functionalized Polystyrene for Detecting Heavy Metal Ion  

Shin, Hyeon Ho (Department of Chemical Engineering, Kwangwoon University)
Kim, Younghun (Department of Chemical Engineering, Kwangwoon University)
Publication Information
Korean Chemical Engineering Research / v.53, no.2, 2015 , pp. 243-246 More about this Journal
Abstract
Colorimetric sensors were usually used to detect specific metal ions using selective color change of solutions. While almost organic dye in colorimetric sensors detected single molecule, dithizone (DTZ) solution could be separately detected above 5 kinds of heavy metal ions by the change of clear color. Namely, DTZ could be used as multi-colorimetric sensors. However, DTZ was generally used as aqueous type and paper/pellet-type DTZ was not reported yet. Therefore, in this work, polystyrene (PS) was prepared to composite with DTZ and then DTZ/PS pellet was obtained, which was used to selectively detect 10 kinds of heavy metal ions. When 10 ppm of Hg and Co ions was exposed in DTZ/PS pellets, clear color change was revealed. It is noted that DTZ/PS pellet could be used in detecting of heavy metal ion as dry type.
Keywords
Colorimetric Sensor; Color Change; Heavy Metal Ion; Polystyrene Bead;
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Times Cited By KSCI : 1  (Citation Analysis)
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