1-furoyl-3,3-diethylthiourea was used as a novel neutral carrier in ion selective electrode for copper II detection and determination. The Cu 2+ selective plasticized polyvinyl chloride (PVC) membrane electrode exhibited reversible potential responses with Nernstian slope of 29.34± 0.6 mV/decade for Cu 2+ ions in the concentration range from 1.0×10 −7 to 1.0×10 −2 mol/dm 3 with a practical detection limit (PDL) of 3.84x10-7 and lower limit of linear response (LLLR) of 6.15x10-7 mol/dm 3 and a lifetime of 20 days. The response time, pH effect and other characteristics of the electrodes were also studied.
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