School of Physics and Electronics, Shandong Normal University, Jinan, China.
Microsc Res Tech. 2021 Aug;84(8):1740-1749. doi: 10.1002/jemt.23731. Epub 2021 Feb 15.
A device for collecting atmospheric particulates matter for on-line electron microscopy was designed and manufactured by using 3D modeling and printing technology. The device was used to collect atmospheric particulates matter in Xining city of Qinghai province for seven consecutive days and used to collect atmospheric particulates matter in Jinan city of Shandong province for 30 consecutive days. And the samples were analyzed by electron microscopy. Through it can obtain ultra structure and size distribution information of atmospheric particulates matter. The experimental results reflected the distribution of atmospheric particulate matter in real time. The on-line acquisition device for electron microscopy is practical, fast, and convenient, which greatly shortens the sampling period and can be carried to any place outdoors for real-time sampling. The morphological structure and particle size distribution of atmospheric particles in sampling area was observed by electron microscope. The device has reference value to the study of PM and PM in atmosphere and air pollution. This acquisition device is convenient for the detection of sample by electron microscopy. It can further expand and simplify the sampling technology of large-scale instruments and equipment. This new method of real-time monitoring of air pollution is worth popularizing and applying.
利用 3D 建模和打印技术，设计并制造了一种用于在线电子显微镜的大气颗粒物采集装置。该装置连续 7 天在青海省西宁市采集大气颗粒物，连续 30 天在山东省济南市采集大气颗粒物，并通过电子显微镜进行分析。通过该装置可以获得大气颗粒物的超微结构和粒径分布信息。实验结果实时反映大气颗粒物的分布情况。在线电子显微镜采集装置具有实用性强、速度快、方便等优点，大大缩短了采样周期，可以携带到室外任何地方进行实时采样。通过电子显微镜观察采样区域大气颗粒物的形态结构和粒径分布。该装置对大气颗粒物 PM 和 PM 的研究具有参考价值，对空气污染的研究也具有参考价值。该采集装置便于电子显微镜检测样品，进一步拓展和简化了大型仪器设备的采样技术。这种实时监测空气污染的新方法值得推广应用。
