Scale inhibitors are used by the petrochemical industry to prevent scale deposition in oil-bearing formation and pipes during oil production. They are also used as a component of fracking fluids. The ability to detect and quantitate scale inhibitors can protect the environment in two ways. First of all, contamination of naturals waters could be identified and remedial action can be taken. Secondly, the ability to monitor the concentration of scale inhibitors in produced water will allow oil production crews to use the minimal scale inhibitor concentration rather than simply injecting an excess of reagent. We have developed a new spectrofluorimetric method that detects scale inhibitors using the fluorescent reagent, Zn (II)-8-hydroxyquinoline-5-sulphonate. Under optimum conditions, the quenched intensity of fluorescence of this complex is proportional to the concentration of scale inhibitors over a wide range.

Fluorescent method for detection of scale inhibitors using a Zn(II)-8-hydroxyquioline-5-sulphonate complex

248th National Meeting (2014)

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