Study on the effective deodorization of the odor in medical environment

本文通过以下两个实验研究了几种常见物质对医疗环境中几种典型气味的除臭效果：第一，完成了气味的基础实验，建立了生理和心理测量方法，并成功地建立了基于脑电和语义微分技术的气味评价系统。利用该系统检测了熏衣草油、粪臭素、异甘草酸等几种气味物质的生理效应，证实了熏衣草油具有一定的镇静作用趋势，并对几种气味物质的除臭效果进行了进一步的实验研究。氨是医疗环境中的典型气味之一。我们做了一个实验，氨的气味是如何被一些熟悉的物质，如咖啡渣，用过的茶叶，薄荷油，活性炭净化的。九种气味剂被制成，由氨组成，四种熟悉的物质中的每一种，以及氨与四种物质中的每一种。受试者为14名健康女性。研究结果如下：1.被试被随机给予七种气味，并对它们的强度、愉快-不愉快程度和质量进行评价。氨的气味与咖啡渣和一个与用过的茶叶减少最主观的氨气味的强度。2.用咖啡渣处理的氨气气味稍有难闻，用茶叶处理的氨气气味既不难闻也不难闻，说明咖啡渣是消除氨气气味的最有效物质。并且，氨的气味的感官质量随着氨的气味的挥发而发生变化。

We investigated about deodorant effects of several familiar substances to some typical smells in the medical environment, through the following two experiments.First, we achieved a basic experiment about odor in order to constructing the methodology for physiological and psychological measurements, and we succeed to establishing the odor assessment system using by both the EEG and the semantic-differential technique, simultaneously. Using this system, we checked some physiological effects of several odor substances, such as the lavender oil, the scatol, and the iso-kisoic asid, and confirmed that the lavender oil had a little tendency of the sedative effect.Next, we achieved a further experiment about deodorant effects of several substances using by the ammonia. Ammonia causes one of the typical smells in medical environment. We had an experiment how the odor of ammonia is deodorized by some of familiar substances, such as coffee grounds, used tea leaves, peppermint oil, active carbon. Nine odorants were made, consist of ammonia, each of four familiar substances, and ammonia with each of four substances. The subjects were fourteen healthy women. They were given the seven odorants at random and evaluated their intensity, pleasantness-unpleasantness, and quality (Twenty-five rating scales used in semantic-differential (SD)).The results were as follows ; 1. The odor of ammonia with coffee grounds and the one with used tea leaves decreased most the intensity of subjective odor of ammonia. 2. The odor of ammonia with coffee grounds was slightly unpleasant, and the one with used tea leaves was neither pleasant nor unpleasant.These results suggested that the coffee grounds were most effective substance which deodorizes the odor of ammonia. And, the sensory qualities of the odor changed when the odor of ammonia deodorized.