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Analysis of amides in the air by sampling with SPME and detection by GC-FID

✍ Scribed by Fabrício Vilela Parreira; Patrícia Luísa de Souza Bergo; Ciomara Rabelo de Carvalho; Zenilda de Lourdes Cardeal

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
302 KB
Volume
29
Category
Article
ISSN
1615-9306

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✦ Synopsis

Analysis of amides in the air by sampling with SPME and detection by GC-FID

This paper proposes a solid-phase microextraction (SPME) method for the passive sampling and determination of N,N-dimethylacetamide (DMA) and N,N-dimethylformamide (DMF) in air by capillary GC with flame ionization detection. The optimized conditions for SPME method were grab sampling, polydimethylsiloxane/divinylbenzene fiber, extraction for 90 min at 25 € 28C, desorption for 3 min at 2208C, and relative humidity 45 € 2%. Under these conditions, the method presented good linearity (R = 0.996), repeatability (%RSD 2.79 and 9.85 for DMF and DMA, respectively), and detection limit (0.021 and 0.024 mg/m 3 for DMF and DMA, respectively).

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