[sup][/sup]N,N-Dimethylacetamide. Determining in workplace air with GC/FID
Journal Title: Podstawy i Metody Oceny Środowiska Pracy - Year 2016, Vol 32, Issue 1
Abstract
N,N-Dimethylacetamide (DMAC) is a colorless liquid with a characteristic amine odour.N,N-Dimethylacetamide mixes with polar and non-polar organic solvents and water. Thissubstance is used in plastic and fi bers industries as a solvent. N,N-Dimethylacetamide vapoursand aerosols are absorbed through inhalation, gastrointestinal tract and skin. Inhalationof N,N-dimethylacetamide can cause cough or breathlessness. Vapours and solutions ofN,N-dimethylacetamide can cause irritation and burns of skin. The aim of this study wasto develop sensitive method for determining N,N-dimethylacetamide in workplace air in therange from 1/10 to 2 MAC value, in accordance with the requirements of Standard No. PN-EN482. A 6890 Hewlett Packard gas chromatography equipped with a fl ame ionization detector (FID)and analytical column ZB-WAX 60 m × 0.32 mm × 0.5 μm was used. The method is based onthe adsorption of N,N-dimethylacetamide on silica gel, desorption with methanol and gaschromatographic analysis of the resulting solution.The measurement range was 1 ÷ 70 mg/m3 for 20-L air sample. Limit of quantifi cation(LOQ) was 3.14 μg/ml. The method described as recipe of analysis (appendix) enables selectivedetermination of N,N-dimethylacetamide. This method is precise, accurate and it meets thecriteria listed in Standard No. PN-EN 482.
Authors and Affiliations
Agata Wziątek, DOMINIKA ADAMUS, Sławomir Brzeźnicki
Keywords
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