Ion-selective electrodes in organic analysis: determination of amines via in situ generation of dithiocarbamates

Wing Hong CHAN*, Albert W M LEE, Lai Kwan Chan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

After derivatisation to the corresponding dithiocarbamates by treating with aqueous sodium hydroxide and carbon disulphide in a two-phase reaction, primary and secondary aliphatic amines were determined by the use of a tetraheptylammonium diethyldithiocarbamate poly(vinyl chloride) matrix membrane electrode. This membrane electrode exhibited Nernstian response to amine concentrations down to 4.0 × 10-4 M and had an average Nernstian slope of 50.7 mV per concentration decade over three determinations (standard deviation = 1.01 mV). Common inorganic and organic ionic species did not interfere with the amine determinations.

Original languageEnglish
Pages (from-to)201-203
Number of pages3
JournalThe Analyst
Volume115
Issue number2
DOIs
Publication statusPublished - 1990

Scopus Subject Areas

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

User-Defined Keywords

  • Amine determination
  • In situ dithiocarbamate generation
  • Ion-selective electrode
  • Organic analysis

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