Simultaneous derivatization/preconcentration of volatile aldehydes with a miniaturized fiber-packed sample preparation device designed for gas chromatographic analysis |
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Authors: | Yoshihiro Saito Ikuo Ueta Mitsuhiro Ogawa Kiyokatsu Jinno |
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Institution: | (1) School of Materials Science, Toyohashi University of Technology, Toyohashi 441-8580, Japan |
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Abstract: | A novel in-needle sample preparation device has been developed for the determination of volatile aldehydes in gaseous samples.
The needle device is designed for the gas chromatographic (GC) analysis of aldehydes and ketones commonly found in typical
in-house environments. In order to prepare the extraction device, a bundle of polymer-coated filaments was longitudinally
packed into a specially designed needle. Derivatization reactions were prompted by 2,4-dinitrophenylhydrazine (NDPH) included
in the needle, and so the aldehydes and ketones were derivatized to the corresponding hydrazones and extracted with the extraction
needle. A reproducible extraction needle preparation process was established, along with a repeatable derivatization/extraction
process that ensures the successful determination of aldehydes. The storage performance of the extraction needle was also
evaluated at room temperature for three days. The results demonstrate the successful application of the fiber-packed extraction
device to the preparation of a gaseous sample of aldehydes, and the future possibility of applying the extraction device to
the analysis of in-house environments. |
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Keywords: | Derivatization Extraction Fiber GC Air/gases Aldehydes |
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