The introduction relates to previous uses of sulphide ion-selective electrodes (ISEs) in applications of environmental relevance, such as, control of the treatment of obnoxious sulphur compounds to avoid their release to the environment. This preamble is followed by details of the work at UWIST on assessing applications of sulphide ISEs for monitoring sewage and industrial effluents, growth studies of sulphate-reducing bacteria and brief details of microcomputerised controlled systems.
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