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Evaluation of a CGC-FID method for qualitative and quantitative analysis of azole antifungal drugs

Ekiert R. J., Krzek J., Czekaj J. S., Hubicka U.

Acta Chromatographica

2009

Vol. 21, no. 2

273--282

This paper presents a new method for identification and quantitative analysis of six azole antifungal drugs — bifonazole, clotrimazole, econazole, fluconazole, ketoconazole, and miconazole — by capillary gas chromatography (CGC) combined with flame ionization detection (FID). The chromatographic separation conditions were established and the method was validated for precision (RSD = 1.49–3.55%), recovery (98.6–101.2%), and linearity within the range under investigation (∼1.0–33.3 ng). The results obtained show the newly developed procedure is suitable for qualitative and quantitative pharmaceutical analysis of the six azoles.

Gas chromatographic determination of diethylene glycol in workplace air

Politowicz M., Pośniak M.

Acta Chromatographica

1998

No. 8

154-161

A capillary gas chromatographic method with flame-ionization detection has been developed for determination of diethylene glycol (DEG) aerosols at concentrations between 2.5 to 30.0 mg m-3 in work-place air. Polypropylene filters were used to sample DEG aerosols from air; the recovery was 90%. The working temperature and carrier gas flow rate used for gas chromatography were optimized to enable separation of DEG from solvent and other compounds present in industrial air. The detection limit was 50 ng on-column.