Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1981-04-09
1982-08-10
Kaplan, G. L.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
73 611C, 204 1T, 204195R, 204294, G01N 3108
Patent
active
043437672
ABSTRACT:
A flow-through electrochemical cell distinguished by the feature of a working electrode comprising selected carbon black powder(s) dispersed within an inert binder. An outstanding characteristic of the invention is the markedly improved signal
oise ratio of the electrode which enables a significant gain in the sensitivity level at which trace compounds can be detected. As an example of utility, as little as 5 to 30 parts per billion (ppb) of most phenolic compounds in water can be determined by liquid chromatographic separation of species and amperometric electrochemical detection, using the described flow-through cell to monitor the column effluent. No sample preparation is required.
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Armentrout David N.
Gill Harold H.
Long Merton W.
McLean James D.
Kaplan G. L.
The Dow Chemical Company
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