Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1988-07-19
1990-06-26
Niebling, John F.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204416, 20415313, G01N 2730
Patent
active
049369750
ABSTRACT:
A liquid film type, chloride ion-selective electrode is provided with the present invention, which comprises a sensitive film containing a polymeric material as a support film material, a tetraalkyl ammonium salt with four alkyl group each having 10-24 carbon atoms as a chloride ion-sensitive substance, and a mixture of a linear alcohol having a low dielectric constant with at leastg 10 carbon atoms and an organic compound having a dielectric constant higher than that of said linear alcohol as plasticizer. This electrode has a high selectivity over lipophilic anions and hydrophilic anions, high accuracy ion measurements, and a long life.
REFERENCES:
patent: 4519891 (1985-05-01), Sugahara et al.
Mikrochimia Acta, 1984, pp. 1-16.
Miyagi Hiroyuki
Oki Naoto
Ozawa Satoshi
Shibata Yasuhisa
Hitachi , Ltd.
Niebling John F.
Ryser David G.
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