Differential-pulse polarographic micro-determination of amines via in situ generation of dithiocarbamates

Wing Hong Chan*, Albert W M Lee, Siu Leung Ng, Wai Leung Liu

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

6 Citations (Scopus)


Primary and secondary amines, after in situ derivatization to their corresponding dithiocarbamates salts by a two-phase reaction, were determined in aqueous solution using differential-pulse polarography. A single differential-pulse polarographic peak was obtained for dithiocarbamate derived from a secondary amine, whereas dithiocarbamate generated from a primary amine exhibited two peaks in its polarogram. The calibration graphs obtained from all polarographic peaks of the six amines under study were rectilinear over the range 5 × 10 -6-2.5 × 10-5 mol dm-3 in the sample solution. For the micro-determination of amines, the method was found to be precise and the detection limit was 20 μg of amine.

Original languageEnglish
Pages (from-to)1909-1912
Number of pages4
Issue number12
Publication statusPublished - 1992

Scopus Subject Areas

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

User-Defined Keywords

  • Amine
  • Differential-pulse polarography
  • In situ dithiocarbamate generation
  • Micro-determination
  • Organic analysis


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