摘要
文中按照GB/T 26393-2011的要求,利用热脱附与气相色谱技术测定燃香类产品燃烧后总挥发性有机物的浓度。用Tenax-TA吸附管采集燃香燃烧后的气体,热脱附仪脱附后,经气相色谱仪分离,由FID检测器检测。方法最低检出限可达0.3μg/m^3(采样体积按20L计),标准曲线线性方程相关系数在0.999以上,回收率为99.5%~103.5%,相对标准偏差在3%以内。
According to GB/T 26393-2011 standard requirements,Determination of the concentration of total volatile organic compounds(TVOC)from incense burning was developed by using thermal desorption-gas chromatography,in which the TVOC was firstly collected by Tenax-TA tube,and then detected by gas chromatography coupled with flame ionization detector after thermal desorption.The corresponding detection limit was 0.3μg/m^3,when the sampling volume was 20L,and the related coefficient of standard curves was above 0.999.The recovery was 99.5%~103.5%with the relative standard deviation(RSD)less than 3%(n=6).
作者
康秀棠
KANG Xiu-Tang(National Quality Supervision and Inspection Centers for Incense Products(Fujian),Yongchun 362600,Fujian,China)
出处
《质量技术监督研究》
2019年第5期2-4,8,共4页
Quality and Technical Supervision Research
关键词
燃香
热脱附
气相色谱法
总挥发性有机物
Incense
Thermal desorption
Gas chromatography
Total votatile organic compound
作者简介
康秀棠,女,国家燃香类产品质量监督检验中心(福建),工程师。
