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A reagentless renewable N,N `-diphenyl-p-phenylenediamine loaded sensor for hydrogen sulfide

  • M Thompson
  • , NS Lawrence
  • , J Davis
  • , L Jiang
  • , TGJ Jones
  • , RG Compton

Research output: Contribution to journalArticlepeer-review

Abstract

The electrochemically induced reaction of sodium sulfide with N,N-1-diphenyl-p-phenylenediamine (DPPD) has been studied in aqueous solutions (pH 1-7) at glassy carbon (GC) electrodes. The DPPD indicator has been shown to form a thin film on the electrode surface capable of sensing sulfide at the triple phase boundary (DPPD/electrolyte/electrode) in the range 20-200 muM with a limit of detection of 18 muM. The low solubility of DPPD has been exploited further by incorporating the species in the design of a modified renewable carbon-epoxy electrode whereby the detection process can occur in an inexpensively constructed device suitable for single shot determinations. (C) 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)33-40
JournalSENSORS AND ACTUATORS B-CHEMICAL
Volume87
Issue number1
Publication statusPublished (in print/issue) - Nov 2002

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

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