The determination of trace amounts of sulphide in condensed steam with NN-diethyl-p-phenylenediamine Rees, T. D. ; Gyllenspetz, A. B. ; Docherty, A. C. Abstract Publication: The Analyst Pub Date: 1971 DOI: 10.1039/an9719600201 Bibcode: 1971Ana....96..201R