Microanalysis Study of the Inspirable Nano-Particles into Lungs by SEM and XREDS
QIU Man-de1，2, LI Xu1，WANG Xiao-yan1，ZHAI Yong-qing1
1. College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China 2. Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, China
Abstract：Inspirable nano-particles into lungs in the atmosphere were studied in this paper. Field emission scanning electron microscope (FSEM) and X-ray energy dispersive spectrometer were used to investigate the morphology and major constituents of inspirable nano-particles into lungs systematically. The results showed that most of the inspirable nano-particles in the atmosphere are spherical and ellipsoidal, with smooth surface and dense structure. The smaller nano-particles are clustered into loose floccule, with the sizes in the range of 30 to 100 nm. The constant elements in the nano-particles are close consistent with the large particle pollutants, which mainly contain C, O, A1, Si, Na, Mg, K, Ca, Fe, S and Cl etc. The point Analysis of EDS confirmed that the element content of Cl and S in some nano-particles is significantly increased, while others mainly contain C and O. It is believed that the surface of nano inorganic dust particles was adsorbed by the organic pollutants to form the core-shell structure nano-particles pollutants in the process of aerosol formation. Thus, reducing anthropogenic emissions of organic pollutants has great influence on the formation of inspirable nano-particles.
仇满德1, 2，李 旭1，王晓燕1，翟永清1 . 大气可吸入肺纳米颗粒的SEM及X射线微分析研究 [J]. 光谱学与光谱分析, 2014, 34(04): 1114-1117.
QIU Man-de1，2, LI Xu1，WANG Xiao-yan1，ZHAI Yong-qing1 . Microanalysis Study of the Inspirable Nano-Particles into Lungs by SEM and XREDS . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(04): 1114-1117.
