Tenax-TA吸附管测定 固定污染源废气中50种挥发性有机物

名称：吸附管

规格：1/4*3.5
填料：200mg
形状：U，直管

型号：TENAX-TA

浩瀚色谱（山东）应用技术开发有限公司采用Tenax -TA吸附-热脱附-气质联用法对固定污染源废气中50种挥发性有机物(VOCs)进行测定.结果显示,Tanax GR吸附管对于丙酮、环戊酮、2-庚酮、2-壬酮及六甲基二硅氧烷的吸附能力相对较差,但丙酮、环戊酮、2-庚酮、2-壬酮在2～30 ng范围内呈现良好的线性关系,且相关系数(R2)>0.99,六甲基二硅氧烷在2～50 ng范围内呈现良好的线性关系,R2=0.994,其他45种化合物在2～100 ng范围内呈现良好的线性关系,R2>0.995.当采样体积为300 mL时,50种化合物的检出限为0.0003～0.0096 mg/m3,测定下限为0.0011～0.0384 mg/m3,相对标准偏差(RSD)<15.98％,加标回收率为78.15％～120.90％.该方法操作简单、灵敏度高、准确性好,能够满足固定污染源废气中痕量VOCs的快速检测.

固定污染源废气中50种挥发性有机物  测试谱图：



50 kinds of volatile organic compounds in waste gas from stationary sources
50 kinds of volatile organic compounds in the exhaust gas of stationary pollution sources Details:

Name: Adsorption tube

Specification: 1/4*3.5
Filler: 200mg
Shape: U, straight pipe

Model: TENAX-TA

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. uses Tenax-TA adsorption-thermal desorption-GC/MS to determine 50 volatile organic compounds (VOCs) in the exhaust gas of fixed pollution sources. The adsorption capacity of pentanone, 2-heptanone, 2-nonanone and hexamethyldisiloxane is relatively poor, but acetone, cyclopentanone, 2-heptanone, and 2-nonanone are in the range of 2-30 ng It shows a good linear relationship, and the correlation coefficient (R2)>0.99, hexamethyldisiloxane shows a good linear relationship in the range of 2-50 ng, R2=0.994, and the other 45 compounds are in the range of 2-100 ng Shows a good linear relationship, R2>0.995. When the sampling volume is 300 mL, the detection limit of 50 compounds is 0.0003～0.0096 mg/m3, the lower limit of determination is 0.0011～0.0384 mg/m3, and the relative standard deviation (RSD)< 15.98%, and the recovery rate of standard addition is 78.15%～120.90%. The method is simple to operate, highly sensitive and accurate, and can meet the rapid detection of trace VOCs in the exhaust gas of fixed pollution sources.

Test spectrum of 50 kinds of volatile organic compounds in fixed pollution source exhaust gas: