Tenax TA吸附管 二次热解吸气相色谱测环境空气中苯系物

二次热解吸气相色谱测环境空气中苯系物，液化石油气，二甲醚，甲缩醛，乙缩醛，乙醇，室内空气，变压器油，多氯联苯，植物油，杂醇油，室内空气，变压器油溶解气，裂解进样器，消毒剂

二次热解吸气相色谱测环境空气中苯系物
二次热解吸气相色谱测环境空气中苯系物 详细信息：

Tenax-TA 是基于2,6-二苯基呋喃(2,6-diphenylene oxide)的多孔型聚合物，用于提取气、液体和固体吹扫产生的挥发性和半挥发性物质，EPA与NIOSH已经将这种方式作为标准分析方法分析VOC组分，这种方法使用热解析或者吹扫捕集装置可以检测到ppb或者ppt级的挥发性有机物。由于其对于水的低亲和性，它更加适合用于从高水份中吹扫捕集易挥发性有机物甚水中易挥发性有机物的分析。

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建立环境空气中低浓度苯系物的分析方法,研究解吸条件和分析条件.方法采用Tenax TA吸附/二次热解吸/毛细管气相色谱法.结果本方法对苯系物测定的相对标准偏差在4.30%～10.81%之间,具有良好的重现性.苯系物的加标回收率大于94%.苯,甲苯,对二甲苯,邻二甲苯的低检出浓度分别为0.09,0.12,0.23,0.26μg/m3.结论本方法适合测定环境空气中低浓度的苯系物.


二次热解吸气相色谱测环境空气中苯系物  测试谱图：



Determination of Benzene Series in Ambient Air by Secondary Thermal Desorption Gas Chromatography
Determination of benzene series in ambient air by secondary thermal desorption gas chromatography. Details:

Tenax-TA is a porous polymer based on 2,6-diphenylene oxide. It is used to extract volatile and semi-volatile substances generated by gas, liquid and solid purging. EPA and NIOSH This method has been used as a standard analysis method to analyze VOC components. This method uses thermal analysis or purge traps to detect ppb or ppt-level volatile organic compounds. Because of its low affinity for water, it is more suitable for purge and trap volatile organic compounds from high moisture and even analysis of volatile organic compounds in water.

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. established an analysis method for low-concentration benzene series in ambient air, and studied the best desorption conditions and analysis conditions. The method used Tenax TA adsorption/secondary thermal desorption/capillary gas chromatography. Results The relative standard deviation of this method for the determination of benzene series is between 4.30% and 10.81%, which has good reproducibility. The recovery rate of standard addition of benzene series is greater than 94%. Benzene, toluene, p-xylene, o-xylene The minimum detectable concentrations of benzene were 0.09, 0.12, 0.23, 0.26 μg/m3. Conclusion This method is suitable for the determination of low-concentration benzene series in ambient air.


Test spectrum of benzene series in ambient air by secondary thermal desorption gas chromatography: