Automated method for short-chain aldehydes emission measurement by dynamic solid-phase microextraction on-fiber derivatization GC-MSD coupled with a flow-cell

A novel automated method was developed to test short-chain aldehyde emissions using a chamber and a flow-cell coupled with a dynamic solid-phase microextraction (SPME) on-fiber derivatization technique. Calibration curves of short-chain aldehydes were developed for quantitation of target analytes, includ-ing formaldehyde, acetaldehyde, propionaldehyde, and acrolein emitted from the chamber outlet. The linearity range for the aldehydes was 0.8 to 2130.0 mu g/m(3). The limits of quantitation (LOQ) for various aldehydes ranged from similar to 0.2 - 1.9 mu g/m(3). By using this method, emission rate curves are measured with an automated system. Compared with a traditional 2,4-dinitrophenyl hydrazine (DNPH)-high performance liquid chromatography (HPLC) method for aldehyde emission measurement, this method provided an automated technique to study the emission of short-chain aldehydes from multiple samples in one experiment. Furthermore, by using dynamic SPME coupled to an on-fiber derivatization technique, the repeatability and sensitivity of the method is comparable and even better than traditional techniques. (c) 2022 Elsevier B.V. All rights reserved.

Automated summary

A novel automated method was developed for testing short-chain aldehyde emissions using a chamber and a flow-cell coupled with dynamic solid-phase microextraction (SPME) on-fiber derivatization technique. This method provides comparable or even better repeatability and sensitivity compared to traditional techniques, and allows for studying short-chain aldehyde emissions from multiple samples in one experiment.