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为了应对当今日益突出的环境污染问题,建立了一套车载色质-热脱附联用系统(配有正压系统)及其对恶臭类物质测定的方法。该系统在恶臭物质测定方面既能解决目前应急监测设备所普遍存在的只能半定量的问题,又能解决样品运送到实验室分析过程中所带来的干扰、损失的问题。方法检出限在8~14ng/m3,精密度好(RSD小于4.1%)。
In order to cope with the increasingly prominent environmental pollution problems today, a set of on-board colorimetric-thermal desorption system (with a positive pressure system) and a method for the determination of bad odor substances were established. The system can not only solve the semi-quantitative problems prevailing in emergency monitoring equipment but also solve the problems of interference and loss caused by the sample transportation to laboratory analysis. The detection limit is 8 ~ 14ng / m3 with good precision (RSD less than 4.1%).