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Priority claimed from US08/194,679external-prioritypatent/US5411889A/en
Application filed by Nalco Chemical CofiledCriticalNalco Chemical Co
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Publication of TW252967BpublicationCriticalpatent/TW252967B/en
Investigating Or Analysing Materials By The Use Of Chemical Reactions
(AREA)
Abstract
A target-specie responsive regulation of water treatment agent feed is achieved by the monitoring of a subject target-specie indicator. A target specie in a sample taken from the system is selected as the subject target-specie indicator, or instead an incipient reagent is added to the system sample to form a subject target-specie indicator. Such a formed subject target-specie indicator comprises a combination of the incipient reagent and a target specie. The subject target-specie indicator might then monitored by fluorescence analysis of the sample to determine at least one fluorescence emission value that can be correlated to the in-system concentration of the target specie. In combination with an inert tracer, the system consumption for the target specie can be determined. A responsive adjustment of the in-system concentration of a water treatment agent can be made.
TW084101285A1994-02-141995-02-13Regulating water treatment agent dosage based on operational system stresses
TW252967B
(en)
Measurement of ph value in cell -- 1, 4-diacetoxy-2, 3-dicyanobenzene, 1, 4-dibutyryloxy-2, 3-dicyanobenzene and 1, 4-di(tertiary butyloxycarbonyl-1-alanyloxy)-2, 3-dicyanobenzene