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Environ Sci Technol


Title:Sensory and analytical evaluations of paints with and without texanol
Author(s):Gallagher M; Dalton P; Sitvarin L; Preti G;
Address:"Monell Chemical Senses Center, 3500 Market Street, Philadelphia, Pennsylvania 19104, USA. mgallagher@monell.org"
Journal Title:Environ Sci Technol
Year:2008
Volume:42
Issue:1
Page Number:243 - 248
DOI: 10.1021/es071555y
ISSN/ISBN:0013-936X (Print) 0013-936X (Linking)
Abstract:"Perception of odor can figure prominently in complaints about indoor air,yet identification of the responsible compound(s) is often difficult. For example, paint emissions contain a variety of odorous volatile organic compounds (VOCs) which maytrigger reports of irritation and upper respiratory health effects. Texanol ester alcohol (2,2,4-trimethyl-1,3-pentanediol monoisobutyrate), a paint coalescing agent, is frequently associated with the 'persistent, characteristic odor' of water-based paint. To evaluate the sensory impact of Texanol, naive (unfamiliar with paint constituents) and experienced (familiar with paint constituents) subjects evaluated the odor properties of paints with and without Texanol. VOC emissions from neat paint and paint applied to gypsum wallboard were collected via solid-phase microextraction and analyzed by gas chromatography/ mass spectrometry and gas chromatography/olfactometry. Regardless of subjects' prior experience, aromatic hydrocarbons and oxygenated compounds, introduced from other paint additives and not Texanol, were most commonly associated with paint odor. However, quantitative sensory techniques demonstrated that addition of Texanol to paints led to an overall increase in the perceived intensity of the coating. The combined use of these techniques proved to be an effective methodology for analyzing the structure of paint volatiles and their sensory properties and holds promise for solving many odorous indoor air problems"
Keywords:"Adolescent Adult Air Pollution, Indoor/*analysis Construction Materials Female Gas Chromatography-Mass Spectrometry *Glycols Humans Hydrocarbons/*analysis Male Middle Aged Odorants/*analysis *Paint *Smell Volatilization;"
Notes:"MedlineGallagher, Michelle Dalton, Pamela Sitvarin, Laura Preti, George eng Clinical Trial Research Support, Non-U.S. Gov't 2008/03/21 Environ Sci Technol. 2008 Jan 1; 42(1):243-8. doi: 10.1021/es071555y"

 
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