Present methods for the determination of sulfide in wastewater are hindered by poor detection limits and extensive sample pretreatment. A less problematic method has been developed with a method detection limit of 2.5μg L{sup}-1. With thistechnique, sparged hydrogen sulfide is precipitated in an acetate-supporting electrolyte by electrogenerated silver ions. Analysis of base-preserved samples was performed with no pretreatment other than volumetric dilution. Metals, halides, andnitrogen-base salts were studied as possible interferences to the method. Direct comparisons with the standard methylene blue method were made for both municipal and industrial wastewaters. The present method was found to be far less inhibited by sampleturbidity.
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