P1AP.1 - Determination of Cu(II) in environmental water samples using polymer inclusion membrane-TAC optode in a continuous flow system

17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria
P-1 - Applications of Chemical Sensors
C. Denna, L. dlC. Coo - Institute of Chemistry, University of the Philippines, Diliman, Quezon City (Philippines), R. Camitan, D. Yabut, B. Rivera - Philippine Council for Industry, Energy and Emerging Technology Research and Development (Philippines)PCIEERD), Department of Science and Technology, Science Community Complex, Bicutan, Taguig City (
436 - 437


A polymer inclusion membrane was developed for the selective determination of copper (II) in river water system. It is composed of 42% di(2-ethylhexyl) phosphoric acid (D2EHPA) as the carrier, 8% dioctyl phthalate (DOP) as the plasticizer, 49% poly(vinyl chloride) PVC as the base polymer and 1% 2-(2-thiazolyazo)-p-cresol (TAC) as the chromophore. The system works by extracting the copper from the water sample forming copper-D2EHPA which then carries the metal along the PIM to form the green copper-TAC complex. The PIM-TAC was incorporated in a continuous flow system. The quantification was done using a circuit with a light emitting diode (LED) and a light dependent resistor (LDR) connected to a voltmeter. Voltage readouts on a computer were obtained for the results. Running the system under optimal conditions provided a limit of detection (LOD) of 0.10mg L-1 and a limit of quantitation (LOQ) of 0.35mg L-1. The optimized CF-PIM-TAC system was used to determine the concentration of Cu(II) in water samples near mining sites.