摘要
目的：研制测定空气中甲醛的被动式个体采样器。方法：根据费克第一扩散定律设计新型被动式个体采样器，并对采样器的性能指标进行评价。结果：在温度10℃～40℃,湿度20％-40％，风速50-600cm／s的范围内，被动式采样器测定空气中甲醛采样流量：104．05 ml／min，最大吸附容量0．2751mg，最短采样时间为30min，用前稳定性≥30d，样品稳定性≥14d，精密度RSD为5．34％。结论：研制的个体采样器可以作为一种测定空气中甲醛的新型采样仪器。
Objective：To design a passive personal sampler for the determination of the formaldehyde in the air. Methods：A new passive personal sampler was designed based on the Fick＇s first law of diffusion and its function was evaluated in the laboratory. Results： Under the condition of wind velocity of 50-600 cm/s, relative humidity of 20%-40% and temperature of 10℃-40℃,the sampling rate of the passive sampler was 104.5 ml/min, the capacity was 0.2751 mg,the shortest sampling time was 30 min,the shelf life was more than 30d, the storage stability was more than 14 d and the precision was 5.34%. Concluo sion：This new kind of passive personal sampler can be used as a new device for the determination of the formaldehyde in the air.
出处
《中国卫生检验杂志》
CAS
2007年第12期2229-2230,2275,共3页
Chinese Journal of Health Laboratory Technology
关键词
被动式
甲醛
个体采样器
Passive
Formaldehyde
Personal sampler
