TENAX-TA sampling tubeIt is a sampling device commonly used for collecting and analyzing volatile organic compounds (VOCs), and one of its important advantages is the "low interference" characteristic of its inert surface. Here is a detailed introduction to this feature:

-The material and principle of inert surface: The adsorbent of the sampling tube is 2,6-diphenylfuran porous polymer. This material has a very stable chemical structure, with few surface active sites and is inert to most compounds, making it less prone to chemical reactions or interactions other than physical adsorption with the components in the sample. At the same time, some sampling tubes are made of stainless steel material, and the inner walls are treated with inertness, such as being coated with a very thin layer of inertness coating, which further reduces the adsorption and catalytic effect of the inner walls on the samples, thereby ensuring "low interference" in the sampling and analysis process.

-The advantage of "low interference"

-Ensure data accuracy: Due to the inert surface of the sampling tube not reacting with VOCs in the sample or generating additional adsorption, the target compounds in the sample can be accurately collected and retained, so that subsequent analysis results can truly reflect the actual composition and concentration of the sample, avoiding data bias caused by interference.

-Suitable for analysis of various compounds:TENAX-TA sampling tubeIt has good adsorption performance for various volatile organic compounds such as alcohols, phenols, amines, aldehydes, ketones, and halogenated aromatic hydrocarbons, and the inert surface does not selectively adsorb or interfere with these compounds, making it widely used for VOCs detection in various scenarios such as the environment, indoor air, and industrial waste gas.

-Reusability: After strict activation treatment, the sampling tube can be reused, and its inert surface can maintain stable performance during multiple uses, without any changes in surface properties due to repeated use, thus ensuring the reliability and consistency of each sampling and analysis.

-Application in relevant standards:TENAX-TA sampling tubeCompliant with multiple national and industry standards, such as HJ 583-2010 "Determination of Benzene Compounds in Environmental Air - Solid Adsorption Thermal Desorption/Gas Chromatography Method", GB 50325-2010 "Code for Indoor Environmental Pollution Control of Civil Building Engineering", GB/T 18883-2002 "Indoor Air Quality Standards", etc. These standards clearly specify the methods and requirements for using sampling tubes for VOCs sampling, further demonstrating their importance and reliability in environmental and indoor air detection fields.