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Sensory and Analytical Evaluations off Paints With and Without Texanol

机译：有或没有Texanol的涂料的感官和分析评估

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Perception of odor can figure prominently in complaints aboutindoor 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 may trigger reports of irritation and upper respiratory health effects. Texanol ester alcohol (2,2,4-trimethyl-1,3-pentanediol monoisobu-tyrate), 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.
机译：对室内空气的抱怨中，气味的感觉尤为明显，但通常很难确定负责任的化合物。例如，油漆排放物包含各种有气味的挥发性有机化合物（VOC），它们可能会引起刺激和上呼吸道健康影响的报告。 Texanol酯醇（2,2,4-三甲基-1,3-戊二醇单异丁酸酯），一种涂料聚结剂，经常与水性涂料的“持久性特征气味”相关。为了评估Texanol的感官影响，天真的（不熟悉油漆成分）和有经验的人（熟悉油漆成分）评估了有和没有Texanol的油漆的气味特性。通过固相微萃取收集来自纯净油漆和涂在石膏墙板上的油漆的VOC排放，并通过气相色谱/质谱法和气相色谱/嗅觉法进行分析。不管受试者先前的经验如何，从其他涂料添加剂而不是从Texanol中引入的芳烃和含氧化合物通常与涂料气味有关。但是，定量感官技术表明，在涂料中加入Texanol会导致涂层的感知强度整体提高。这些技术的组合使用被证明是分析油漆挥发物的结构及其感官特性的有效方法，并有望解决许多室内臭味问题。

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