Yao Xiao-Yuan, Wang Wen, Chen Yuan-Li, Wang Yan, Qi Qiping
Institute for Environmental Health and Related Product Safety, China CDC, Beijing 100021, China.
Wei Sheng Yan Jiu. 2005 Jul;34(4):410-2.
We developed a solid phase adsorption gas sampler, which is suitable for collection and analysis of indoor air formaldehyde.
This solid phase adsorption gas sampler is composed of two parts, a support part made of a glass tube covered silica-gel stopper on ports, an absorbent part in glass tube made of surface denatured synthetic fibre coated formaldehyde absorbent. We evolved its performance, and established an method for sampling and determination formaldehyde in indoor air with the gas sampler.
For the solid phase adsorption gas sampler, the collection efficiency was 98.7%, and the desorption efficiency was 98.6%. The variation coefficients of sampling was 4.02% (n = 10). The above method was compared with the standard method (GB/T 16129-1995 ), the results showed no significant difference between the two methods.
This solid phase adsorption gas sampler can be used for sampling and determination formaldehyde in indoor air.
研制一种适用于室内空气中甲醛采集与分析的固相吸附气体采样器。
该固相吸附气体采样器由两部分组成，支撑部分为端口覆盖硅胶塞的玻璃管，吸收部分为玻璃管内表面涂覆甲醛吸收剂的表面变性合成纤维。对其性能进行了研究，并建立了用该气体采样器采集和测定室内空气中甲醛的方法。
该固相吸附气体采样器的采集效率为98.7%，解吸效率为98.6%。采样的变异系数为4.02%（n = 10）。将上述方法与标准方法（GB/T 16129 - 1995）进行比较，结果表明两种方法无显著差异。
该固相吸附气体采样器可用于室内空气中甲醛的采样和测定。
