Highly selective simultaneous determination of Cu(<scp>ii</scp>), Co(<scp>ii</scp>), Ni(<scp>ii</scp>), Hg(<scp>ii</scp>), and Mn(<scp>ii</scp>) in water samples using microfluidic paper-based analytical devices
Pornphimon Kamnoet, Wanlapa Aeungmaitrepirom, Ruth F. Menger, Charles S. Henry
Abstract
(Mn(ii)). The lowest detectable concentration and linearity for the five metal ions allow the application of this device for the determination of heavy metal ions in various water samples. The sensor showed high selectivity and efficiency for simultaneous determination of Cu(ii), Co(ii), Ni(ii), Hg(ii), and Mn(ii) in drinking, tap, and pond water samples on a single device and detection with the naked eye. The results illustrated that the proposed sensor showed good accuracy and precision agreement with the standard ICP-OES method.
Topics & Concepts
ChemistryResorcinolDimethylglyoximeDithizoneMetal ions in aqueous solutionChelationNuclear chemistryMetalColorimetryChromatographyInorganic chemistryCobaltOrganic chemistryBiosensors and Analytical DetectionAdvanced biosensing and bioanalysis techniquesAdvanced Chemical Sensor Technologies