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Merck
  • Cobalt(II) selective membrane electrode based on palladium(II) dichloro acetylthiophene fenchone azine.

Cobalt(II) selective membrane electrode based on palladium(II) dichloro acetylthiophene fenchone azine.

Talanta (2011-11-22)
I M Isa, S Mustafar, M Ahmad, N Hashim, S A Ghani
초록

A new cobalt(II) ion selective electrode based on palladium(II) dichloro acetylthiophene fenchone azine(I) has been developed. The best membrane composition is found to be 10:60:10:21.1 (I)/PVC/NaTPB/DOP (w/w). The electrode exhibits a Nerstian response in the range of 1.0 × 10(-1)-1.0 × 10(-6)M with a detection limit and slope of 8.0 × 10(-7)M and 29.6 ± 0.2 mV per decade respectively. The response time is within the range of 20-25s and can be used for a period of up to 4 months. The electrode developed reveals good selectivity for cobalt(II) and could be used in pH range of 3-7. The electrode has been successfully used in the determination of cobalt(II) in water samples.

MATERIALS
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제품 설명

Sigma-Aldrich
(1R)-(−)-Fenchone, ≥98%
Sigma-Aldrich
L-Fenchone, ≥98%
Supelco
(+)-Fenchone, analytical standard
Sigma-Aldrich
(+)-Fenchone, purum, ≥98.0% (sum of enantiomers, GC)