COPPERII-SELECTIVE ELECTRODES BASED ON 1-FUROYL-3,3-DIETHYLTHIOUREA AS A NEUTRAL CARRIER
1-furoyl-3,3-diethylthiourea was used as a novel neutral carrier in ion selective electrode for copperII detection and determination. The Cu2+ selective plasticized polyvinyl chloride (PVC) membrane electrode exhibited reversible potential responses with Nernstian slope of 29.34± 0.6 mV/decade for Cu2+ ions in the concentration range from 1.0x10-7 to 1.0x10-2 mol/dm³ with a practical detection limit (PDL) of 3.84x10-7 and lower limit of linear response (LLLR) of 6.15x10-7 mol/dm³ and alife-time of 20 days. The response time, pH effect and other characteristics of the electrodes were also studied.
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| Main Authors: | , , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedad Chilena de Química
2010
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| Online Access: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000300022 |
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