5%PEG-20M/6201（60-80目）填充柱 GB/T 16054-1995 车间空气中苯乙烯的热解吸气相色谱测定

名称：填充柱

固定液：5%聚乙二醇6000
规格：2m*4mm
型号：5%PEG-20M/6201（60-80目）
应用： GB/T 16054-1995 车间空气中苯乙烯的热解吸气相色谱测定方法

浩瀚色谱（山东）应用技术开发有限公司建立了空气中苯系物的分析方法,方法用Tenax TA吸附管吸附空气中苯系物,二次热解吸直接进毛细管气相色谱分析。该方法定性、定量准确,线性响应良好,回归方程的线性相关系数大于0.9991,相对标准偏差在2.1%~5.3%之间,加标回收率大于92%,具有良好的重现性。测定干扰小,检测灵敏度高,当采样体积1 L时,平均解吸率在95%以上,苯系物的低检出浓度可达0.5 ug/m3。本方法适合测定空气中低浓度的苯系物。


GB/T 16054-1995 Determination of pyrolysis gas chromatography of styrene in workshop air
GB/T 16054-1995 Determination of Styrene in Workshop Air by Thermal Desorption Gas Chromatography Details:

Name: Packed Column

Fixative: 5% polyethylene glycol 6000
Specifications: 2m*4mm
Model: 5%PEG-20M/6201 (60-80 mesh)
Application: GB/T 16054-1995 Determination method of pyrolysis gas chromatography for styrene in workshop air

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a method for the analysis of benzene series in the air. The method uses Tenax TA adsorption tube to adsorb benzene series in the air, and the secondary thermal desorption is directly into the capillary gas chromatography for analysis. The method was qualitatively and quantitatively accurate, with a good linear response. The linear correlation coefficient of the regression equation was greater than 0.9991, the relative standard deviation was between 2.1% and 5.3%, and the recovery rate of standard addition was greater than 92%, showing good reproducibility. The detection interference is small and the detection sensitivity is high. When the sampling volume is 1 L, the average desorption rate is above 95%, and the minimum detection concentration of benzene series can reach 0.5 ug/m3. This method is suitable for the determination of low concentrations of benzene series in the air