室内空气中总挥发性有机物（TVOC）检验方法的探索

Exploration the Detection Method Indoor Air of Total Volatile Organic Compounds

摘要: 使用TVOC混合标准溶液对气相色谱法检测室内空气样品中总挥发有机物的方法进行了探索。改进后的色谱分析时间为26.1min，比GB/T 18883-2002方法（52min）缩短了25.9min，TVOC各物质峰分离度高于99%，检测精密度相对标准偏差在1.05%至2.89%之间，回收率在95%到102%之间，检出限为0.020μg。

Abstract: Total Volatile Organic Compounds(TVOC) blended standard solution was used to explore the detection method of TVOC by GC and to determine the best chromatographic conditions. The improved process used only 26.1min, which is 25.9 min shorter than that of the original one(52 min) described in GB/T1 8883-2002. The separating degree of each component in the TVOC blended standard solution was greater than 99%. The RSD of precision was between 1.05% and 2.89%. the recovery was between 95% and 102%, and the detection limit was 0.020 μg.