改良型安德森细菌气溶胶采样器的校准

Appl Microbiol. 1964 Jan;12(1):37-43. doi: 10.1128/am.12.1.37-43.1964.

A study of the flow regime in the commercial Andersen sampler revealed defects in the sampling of the larger airborne particles. Satisfactory sampling was obtained by redesigning the hole pattern of the top stages and adding one more stage to extend the range of the instrument. A new, rational hole pattern is suggested for the lower stages. With both patterns a special colony-counting mask can be used to facilitate the assay. A calibration of the modified system is presented which enables particle size distribution curves to be drawn from the colony counts.

对商用安德森采样器内气流状态的一项研究揭示了在较大气载颗粒采样方面存在的缺陷。通过重新设计顶部几级的孔型并增加一级来扩大仪器的范围，从而获得了令人满意的采样效果。针对较低几级，提出了一种新的合理孔型。采用这两种孔型时，均可使用一种特殊的菌落计数掩膜来便于检测。给出了改进后系统的校准方法，该方法能根据菌落计数绘制粒度分布曲线。