便携式气相色谱-质谱联用仪应急现场测定空气中54种 VOCs

摘要

A method for on-site analysis the 54 volatile organic compounds ( VOCs) in the atmosphere was established by u-sing portable gas chromatography -mass spectrometry.The linear,recovery (56.3%~141.1%),precision (3.80%~22. 69%) and detection limit of each compound were detected ,and this method was carried out to detect the actual samples .Re-sults shows that the method has good precision and accuracy ,highly sensitivity,digestion thoroughly,simplicity,which is appli-cable to the on-site analysis of the 54VOCs in the atmosphere.%采用Inficon公司的HAPSITE四级杆气质联用仪，建立便携式气相色谱—质谱联用仪应急现场测定空气中54种挥发性有机物。对各种化合物的线性、加标回收率（56．3％～141．1％）、精密度（3．80％～22．69％）、检出限进行了测定，并将该方法运用到实际样品测定中。结果表明，该方法准确可靠、灵敏度好、分析速度快、操作简便，适用于空气中54种挥发性有机物的现场测定。