Abstract
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 language | English |
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Pages (from-to) | 1909-1912 |
Number of pages | 4 |
Journal | Analyst |
Volume | 117 |
Issue number | 12 |
DOIs | |
Publication status | Published - 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