挥发性有机化合物(Volatile organic compounds，VOCs)是引发霾和光化学烟雾等环境问题的重要原因，达到一定浓度会对人类健康造成威胁。非甲烷总烃(Non-methane hydrocarbon，NMHC)作为VOCs总量统计的重要指标，在一定程度上可以简单、直观地反映VOCs 污染状况，因此，监控NMHC对保护环境与人类健康具有重要意义。
为实现在实验室评价餐饮业油烟净化设备对非甲烷总烃的净化能力，提高评价方法的科学性和准确性，浩瀚色谱（山东）应用技术开发有限公司开发了可稳定产生高浓度非甲烷总烃的发生装置，筛选了适用于检测油烟中非甲烷总烃的检测方法，构建了实验室测试平台，实现了评价非甲烷总烃净化效果的实验室检测。通过对非甲烷总烃发生装置的研究，开发出可以稳定发生非甲烷总烃浓度高达40～50 mg/m
3且重复性<15%的油烟发生装置，突破了实验室无法稳定模拟餐饮业排放的高浓度非甲烷总烃的难题。
通过实验比较出便携式氢火焰离子化检测器法、气相色谱法两种适用于测定油烟中非甲烷总烃的检测方法。综合筛选出的检测方法，新开发的非甲烷总烃发生装置和实验室标准台架，构建出可用于评价油烟净化设备处理非甲烷总烃能力的检测平台，并通过实验验证了平台对高、低浓度的非甲烷总烃的稳定性(非甲烷总烃的重复性分别<15%和<20%)，表明研究开发的检测系统可稳定、有效地用来评价餐饮业油烟净化设备治理非甲烷总烃的性能，为实现实验室统一检测奠定了基础。
名称：总烃柱
规格：1.5m*1/8
应用：环境空气/固定污染源废气中总烃，甲烷，非甲烷总烃的测定
名称：甲烷柱
规格：1.5m*1/8
应用：固定污染源废气/环境空气中总烃，甲烷，非甲烷总烃的测定 气相色谱法
氧不干扰，柱效高，分离好，柱温可达100度甚至120度
Volatile organic compounds (VOCs) are an important cause of environmental problems such as haze and photochemical smog, and reaching a certain concentration can pose a threat to human health. Non methane hydrocarbons (NMHC), as an important indicator for the total amount of VOCs statistics, can to some extent simply and intuitively reflect the pollution status of VOCs. Therefore, monitoring NMHC is of great significance for protecting the environment and human health.
In order to evaluate the purification ability of catering industry oil fume purification equipment for non-methane total hydrocarbons in the laboratory, improve the scientificity and accuracy of evaluation methods, Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed a generation device that can stably produce high concentrations of non-methane total hydrocarbons, screened detection methods suitable for detecting non-methane total hydrocarbons in oil fume, constructed a laboratory testing platform, and achieved laboratory testing for evaluating the purification effect of non-methane total hydrocarbons. Through the study of non methane total hydrocarbon generation devices, a stable oil fume generation device with a concentration of up to 40-50 mg/m3 and a repeatability of<15% has been developed, which has overcome the problem of laboratory instability in simulating high concentration non methane total hydrocarbon emissions from the catering industry.
Through experiments, two detection methods, portable hydrogen flame ionization detector method and gas chromatography method, were compared to determine non methane total hydrocarbons in oil fume. A comprehensive screening of detection methods, a newly developed non methane total hydrocarbon generation device, and a laboratory standard bench were used to construct a detection platform that can be used to evaluate the ability of oil fume purification equipment to treat non methane total hydrocarbons. The stability of the platform for high and low concentrations of non methane total hydrocarbons was verified through experiments (the repeatability of non methane total hydrocarbons was<15% and<20%, respectively), indicating that the developed detection system can be stably and effectively used to evaluate the performance of catering industry oil fume purification equipment in treating non methane total hydrocarbons, laying the foundation for achieving unified laboratory testing.
Name: Total hydrocarbon column
Specification: 1.5m * 1/8
Application: Determination of total hydrocarbons, methane, and non methane total hydrocarbons in ambient air/fixed pollution source exhaust gas
Name: Methane column
Specification: 1.5m * 1/8
Application: Determination of total hydrocarbons, methane, and non methane total hydrocarbons in fixed pollution source exhaust gas/ambient air by gas chromatography
Oxygen does not interfere, column efficiency is high, separation is good, and column temperature can reach 100 ° C or even 120 ° C
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