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Capillary gas chromatography of metal chelates of diethyl dithiocarbamates
- Source :
- Chromatographia. 55:349-352
- Publication Year :
- 2002
- Publisher :
- Springer Science and Business Media LLC, 2002.
-
Abstract
- Capillary GC of metal chelates of diethyl dithiocarbamate (DDTC) was examined on a methylsilicone DB-1 column, (25 meter, 0.2 mm. i.d) with a film thickness of 0.25 μm. Elution was carried out at the initial column temperature of 180°C and programmed at 5°C min−1 to 260°C. Detection was by FID or ECD. Symmetrical peaks with base line separation were obtained with the metal chelates of copper(II), nickel(II), cobalt(III), manganese(II) and chromium(III). The ECD gave better sensitivity than the FID with a linear calibration range of 5–50 μg mL−1 and detection limits 2.0–6.0 μg mL−1, corresponding to 111–333 pg of metal ion reaching the detector. The method was applied to the determination of metal ions in water and pharmaceutical preparations with a coefficient of variation (CV) within 4.0%. When compared with a standard flame AAS method the results revealed no significant difference.
- Subjects :
- Detection limit
Elution
Metal ions in aqueous solution
Organic Chemistry
Clinical Biochemistry
Inorganic chemistry
chemistry.chemical_element
Biochemistry
Analytical Chemistry
law.invention
Nickel
Electron capture detector
chemistry
law
Flame ionization detector
Gas chromatography
Cobalt
Nuclear chemistry
Subjects
Details
- ISSN :
- 16121112 and 00095893
- Volume :
- 55
- Database :
- OpenAIRE
- Journal :
- Chromatographia
- Accession number :
- edsair.doi...........19d5a25368a820432bace38537a8f6f0