Determination of odour concentration by TD-GC×GC-TOF-MS and field olfactometry techniques.

IF 1.7 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Monatshefte Fur Chemie Pub Date : 2017-01-01 Epub Date: 2017-07-13 DOI:10.1007/s00706-017-2023-8

Hubert Byliński, Paulina Kolasińska, Tomasz Dymerski, Jacek Gębicki, Jacek Namieśnik

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Abstract

Abstract: Field olfactometry is one of the sensory techniques used to determine odour concentration, in atmospheric air, directly in emission sources. A two-dimensional gas chromatography with time of flight mass spectrometer (GC×GC-TOF-MS) allows performing the chemical characterization of various groups of chemical compounds, even in complex mixtures. Application of these techniques enabled determination of odour concentration level in atmospheric air in a vicinity of the oil refinery and the neighbouring wastewater treatment plant. The atmospheric air samples were analysed during a time period extending from February to June 2016. Based on the GC×GC-TOF-MS analysis and odour threshold values, the theoretical odour concentrations were calculated and compared with the odour concentrations determined by field olfactometry technique. The investigations revealed that higher values of odour concentration were obtained with the field olfactometry technique where odour analysis was based on holistic measurement. It was observed that the measurement site or meteorological conditions had significant influence on odour concentration level. The paper also discusses the fundamental analytical instruments utilized in the analysis of odorous compounds and their mixtures.

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利用 TD-GC×GC-TOF-MS 和现场嗅觉测量技术测定气味浓度。

摘要：现场嗅觉测量法是一种感官技术，用于直接在排放源测定大气空气中的气味浓度。二维气相色谱-飞行时间质谱仪（GC×GC-TOF-MS）可以对各种化合物组，甚至复杂混合物进行化学特征描述。应用这些技术可以确定炼油厂和邻近污水处理厂附近大气中的气味浓度水平。大气空气样本的分析时间跨度为 2016 年 2 月至 6 月。根据 GC×GC-TOF-MS 分析和气味阈值，计算了理论气味浓度，并与现场嗅觉测量技术测定的气味浓度进行了比较。调查显示，现场嗅觉测量技术获得的气味浓度值更高，而气味分析是基于整体测量。据观察，测量地点或气象条件对气味浓度水平有重大影响。本文还讨论了用于分析气味化合物及其混合物的基本分析仪器：

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来源期刊

Monatshefte Fur Chemie 化学-化学综合

CiteScore

3.70

自引率

5.60%

发文量

116

审稿时长

3.3 months

期刊介绍： "Monatshefte für Chemie/Chemical Monthly" was originally conceived as an Austrian journal of chemistry. It has evolved into an international journal covering all branches of chemistry. Featuring the most recent advances in research in analytical chemistry, biochemistry, inorganic, medicinal, organic, physical, structural, and theoretical chemistry, Chemical Monthly publishes refereed original papers and a section entitled "Short Communications". Reviews, symposia in print, and issues devoted to special fields will also be considered.