Volatile Carbonyl Compounds Emission in Dry-Process Fibreboard: Identification through a Selective GDME-HPLC-DAD-MS/MS Method

• Type: Article in International Scientific Journal
• Date: 2024-03-25

Authors

Luísa Carvalho (Author) FEUP; Fátima Daniela Gonçalves (Author) FCUP; Jorge Martins (Author) FEUP; Rodrigues, JA (Author) FCUP; Rui Miguel Ramos (Author) FCUP

Journal

The Journal is awaiting validation by the Administrative Services.

Title: SEPARATIONS

Vol. 11

Pages: 92-92

ISSN: 2297-8739

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 1 Citation

Other information

Authenticus ID: P-010-D6A

DOI: 10.3390/separations11040092

Abstract (EN): This work presents a novel application of gas-diffusion microextraction (GDME) for the extraction and identification of volatile carbonyl compounds from a dry-process fibreboard (MDF) by combining high-performance liquid chromatography with diode array detection (HPLC-DAD) and mass spectrometry (MS). GDME is a simple, inexpensive, and environmentally friendly technique that allows the simultaneous extraction and derivatization with 2,4-dinitrophenylhydrazine (DNPH) of selected volatiles. The extraction conditions were optimized using design of experiments through a 24 full fractional design followed by a Box-Behnken design, resulting in 35 min of extraction at 45 degrees C using 500 mu L of DNPH 0.15%. The analysis of commercial MDF samples with different characteristics, such as thickness or colour, showed a distinct emission profile of volatile carbonyls. The principal emitting compounds found were formaldehyde, acetaldehyde, acetone, butanal, pentanal, hexanal, heptanal, octanal, and nonanal. A total of 25 compounds were identified using MS, including saturated and unsaturated aldehydes, ketones, dicarbonyls, and benzaldehyde-derivatives. This method can be a valuable tool for the qualitative evaluation of VOCs released from wood-based panels and for the assessment of indoor-air quality.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15