【摘要】 目的探讨采集氨的新方法方法采用扩散法将空气中氨采集在磷酸—甘油浸渍的无纺布吸收层上。结果采样速率为（１３７．６±８．４）ｍｌ／ｍｉｎ，与动力采样法现场对比测定，总不确定度为±１９．３％。结论采样器体积小、无噪声、操作方便，适于个体接触量与室内空气污染监测。更多还原

【Abstract】 Objective To probe the new method on collection of ammonia. Methods The diffusion collection monitor was used to absorb ammonia in ambient air.The absorbent layer was composed of synthetic fiber cloth impregnated of H3PO4glycerin Solution. Results The sampling rate of NH3 was (137.68.4)ml/min. Compared with the active device in field,the overall uncertainty of the diffusion sampling monitor was19.3%. Conclusion With the characterisctics of small weight,no noise,easy to be operated,the monitor is suitale to determine the concentration of NH3 of indoor air and personal NH3 exposure.更多还原