，通過改變Tenax--TA吸附劑的量、采樣的溫度、樣品的采集體積等條件，研究這些條件的改變對(duì)Tenax--TA對(duì)苯及TVOC的吸附性能的影響。實(shí)驗(yàn)表明，用Tenax--TA吸附劑在合適的條件下能同時(shí)準(zhǔn)確定量空氣中的苯及TVOC。

Tenax-TA吸附劑檢測(cè)空氣中苯及TVOC 圖片：




Tenax-TA adsorbent for detecting benzene and TVOC in air
Tenax-TA adsorbent for the detection of benzene and TVOC in air.

Stationary Phase: Tenax-TA
Particle size: 60-80 mesh
Specifications: 1/4*3.5 inches, 6*150mm, 6*90, packing 200mg, other specifications can be customized
Material: glass, stainless steel
Application: GB_50325-2010_Code for indoor environmental pollution control of civil construction projects

Tenax's chemical name is poly(2,6-diphenyl-p-phenylene ether), a polymer linear polymer originally synthesized by the AKZO laboratory in the Netherlands and registered as Tenax® by Buchem B.V. of the Netherlands. Tenax series products have been developed for three generations, Tenax GC, Tenax TA and Tenax GR. Tenax GC is the first generation product, originally developed as a column packing material, and its application range has been expanded to collect samples and enrich samples. As the research progresses, the Tenax GC is gradually replaced by the new generation product Tenax TA. Tenax TA has less impurities, higher purity and less loss than Tenax GC, making Tenax more widely used; Tenax GR is a new generation of Tenax products, which contain 23% graphitized carbon black, which are not simply mixed together. Instead, it is obtained by coprecipitation of graphitized carbon black and Tenax polymer.

The current national standard "Code for Indoor Environmental Pollution Control of Civil Building Engineering" GB50325-2001 (2006 edition) (hereinafter referred to as "Specifications") stipulates that benzene and TVOC are respectively tested by different methods. The sampling of benzene in the air is performed by using activated carbon adsorbent, sampling 10L, thermal desorption or CS2 solvent desorption direct injection chromatography or manual injection chromatography; TVOC detection using Tenax-TA adsorbent, sampling 1 ~ 5L (2001 version sampling Volume 10L), thermal desorption direct injection or manual injection chromatography.
Tengzhou Haohao Chromatography Instrument Technology Service Co., Ltd. studied the adsorption properties of Tenax-TA on benzene and TVOC by changing the amount of Tenax-TA adsorbent, sampling temperature, sample collection volume and other conditions. influences. Experiments show that the Benax-TA adsorbent can accurately quantify benzene and TVOC in the air under suitable conditions.

Determination of Benzene and TVOC in Air by Tenax-TA Adsorbent