Determination of N-halogeno derivatives with ion-selective electrodes

Manuel Marquez, Jose Alvarado, Michael De Rosa

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3 Scopus citations


A method for analysing solutions of N-iodo derivatives (1 × 10 -2-1 × 10-7 mol dm-3) and N-bromo derivatives (1 × 10-2-1 × 10-6 mol dm -3) has been developed. The N-halogeno derivative is reduced with sulphite ion and the halide concentration determined with an ion-selective electrode. N-Chloro derivatives undergo halogen exchange with bromide or iodide ion. The change in bromide or iodide concentration is determined with an ion-selective electrode and is equal to the concentration of the N-chloro derivative. Solutions 1 × 10-6-1 × 10-7 mol dm-3 in N-chloro derivative can be analysed by this method.

Original languageEnglish (US)
Pages (from-to)721-722
Number of pages2
JournalThe Analyst
Issue number7
StatePublished - Dec 1 1991

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry


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