PMID- 9463901 OWN - NLM STAT- MEDLINE DCOM- 19980303 LR - 20190720 IS - 0021-9673 (Print) IS - 0021-9673 (Linking) VI - 791 IP - 1-2 DP - 1997 Dec 12 TI - Analysis of odour and taste problems in high-density polyethene. PG - 213-9 AB - The compounds that cause off-flavours in plastics, have been recognized mainly as carbonyl compounds (aldehydes, ketones and esters). They occur in low concentrations, and due to their low-threshold odour concentrations, their typical odours were identified. Most of these off-flavour compounds are volatile. Chemical analysis of smelling compounds requires a very sensitive method with a high-resolution capability. The analysis of volatile organic compounds (VOCs) in high density polyethene (HD-PE) granules and waters in which the granules have been shaken for 4 h, were carried out by gas chromatography-mass spectrometry-sniffing system (GC-MS-SNIFF) and by gas chromatography-fourier transform infrared spectroscopy-sniffing system (GC-FTIR-SNIFF). A purge-and-trap technique was used to introduce the VOCs from samples into the gas chromatograph. Leaching waters of HD-PE granules were also evaluated by panel. This panel agreed upon six descriptive attributes for odour: sweet, chemical, stale, dusty, foul and floor-cloth. The attributes for taste were: sweet, metallic, stony, pungent, dusty, plastic, foul, stink bug and candle grease. FAU - Villberg, K AU - Villberg K AD - University of Jyvaskyla, Department of Chemistry, Finland. FAU - Veijanen, A AU - Veijanen A FAU - Gustafsson, I AU - Gustafsson I FAU - Wickstrom, K AU - Wickstrom K LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Polyethylenes) SB - IM MH - Chromatography, Gas/*methods MH - Mass Spectrometry/*methods MH - Odorants/*analysis MH - Polyethylenes/*chemistry MH - Reproducibility of Results MH - Sensitivity and Specificity MH - *Taste MH - Water Supply/*analysis/standards EDAT- 1998/02/17 00:00 MHDA- 1998/02/17 00:01 CRDT- 1998/02/17 00:00 PHST- 1998/02/17 00:00 [pubmed] PHST- 1998/02/17 00:01 [medline] PHST- 1998/02/17 00:00 [entrez] AID - S0021-9673(97)00769-3 [pii] AID - 10.1016/s0021-9673(97)00769-3 [doi] PST - ppublish SO - J Chromatogr A. 1997 Dec 12;791(1-2):213-9. doi: 10.1016/s0021-9673(97)00769-3.