Membrane ion‐selective electrodes for gold determination in cyanide solutions

Brzózka, Zbigniew

doi:10.1002/elan.1140020806

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…the incorporation of tetraalkylammonium or bis(triphenylphosphoranylidene)ammonium salts in the ion-selective membrane. Brzozka [47] investigated ion-exchange membranes sensitive for Au(CN) À 2 as an analytical method for gold. Increased lipophilicity of the tetraalkylammonium ion-exchange sites improved the selectivity for Au(CN) À 2 vs. hydrophilic anions, like Cl À and IO À 3 .…”

Section: Sensors With Quaternary Ammonium or Guanidinium Sitesmentioning

confidence: 99%

Potentiometric Anion Selective Sensors

Antonisse

Reinhoudt²

1999

Electroanalysis

134

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In comparison with selective receptors (and sensors) for cationic species, work on the selective complexation and detection of anions is of more recent date. There are three important components for a sensor, a transducer element, a membrane material that separates the transducer element and the aqueous solution, and the receptor molecule that introduces the selectivity. This review deals with potentiometric transduction elements that convert membrane potentials into a signal. The structure and properties of membrane materials is discussed. The nature of the anion receptor ultimately determines the selectivity. Both coordination chemistry and hydrogen bonding have been used to design anion receptor molecules. The integration of all three elements by covalent linkage of all elements in durable sensorsystem concludes the review.

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Section: Sensors With Quaternary Ammonium or Guanidinium Sitesmentioning

confidence: 99%