小型环境测试舱法测定聚氯乙烯卷材地板中TVOC的释放量
Determination of TVOC emission from PVC floors by small environmental test chamber
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摘要: 采用小型环境舱模拟聚氯乙烯(PVC)卷材地板在实际使用过程中挥发性有机化合物(VOC)的释放过程,利用热解析-气相色谱质谱联用(TD-GC-MS)法测定总挥发性有机化合物(TVOC)释放量.各组分检出限为0.2—0.4 μg·m-3(S/N=3),定量限为0.6—1.4 μg·m-3(S/N=10).对20个PVC卷材地板的TVOC释放规律和主要污染物来源进行了分析.Abstract: Small environment chambers were used to simulate the volatile organic compounds(VOC) release process of polyvinyl chloride(PVC) floors and the release of TVOC was determined by thermal desorption gas chromatography mass spectrometry (TD-GC-MS). The limits of detection and the limits of quantitation of 9 VOCs were 0.2—0.4 μg·m-3 (S/N=3) and 0.6—1.4 μg·m-3 (S/N=10). The release law of TVOC and main pollutant sources of 20 PVC floors were analyzed.
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Key words:
- PVC floor /
- environmental test chamber /
- TVOC emission
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