浩瀚色谱（山东）应用技术开发有限公司，建立一种快速、灵敏、准确检测工作场所空气中苯系物的方法。方法通过对影响热解吸的因素的考察,建立Tenax-TA吸附浓缩—热解吸直接进样气相色谱检测工作场所空气中的苯系物的方法。结果Tenax-TA热解吸效率试验:对苯、甲苯、对二甲苯和邻二甲苯的解吸率分别为(101.2±3.2)%、(101.6±3.6)%、(102.0±3.1)%和(102.3±3.0)%;以上4种苯系物的该方法检出限分别为1.0、2.0、5.0和5.0ng。结论该法重现性好,检出限低,并在实际工作中获得应用。

　　名称:吸附管

　　规格:1/4*3.5in

　　Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a rapid, sensitive, and accurate method for detecting benzene derivatives in workplace air. Method: By investigating the factors affecting thermal desorption, a Tenax TA adsorption concentration thermal desorption direct injection gas chromatography method was established for detecting benzene derivatives in workplace air. The results of Tenax TA thermal desorption efficiency test showed that the desorption rates of benzene, toluene, xylene, and o-xylene were (101.2 ± 3.2)%, (101.6 ± 3.6)%, (102.0 ± 3.1)%, and (102.3 ± 3.0)%, respectively; The detection limits of the above four benzene derivatives using this method are 1.0, 2.0, 5.0, and 5.0 ng, respectively. Conclusion: This method has good reproducibility, low detection limit, and has been applied in practical work.

　　Name: Adsorption Tube

　　Specification: 1/4 * 3.5in