A laboratory micro X-ray fluorescence spectrometer based on polycapillary X-ray optics (PXRO) was used to carry out the quantitative X-ray fluorescence analysis of single aerosol particles with smaller size than that of focal spot of PXRO. The minimum detection limits measured with the thin-film reference standards were in the range from 13.3 to 0.7 ng cm(-2) when the operating current and voltage were 70 mA and 35 kV, respectively. In order to reduce the effects of the inhomogeneous distributions of the X-ray intensity in the focal spot of the PXRO on the analysis results, the sensitivities were corrected by using a Gaussian function for the quantitative analysis of single aerosol particles. The accuracy of the analysis of single standard solution drops was on average 25% depending on the element and concentration. The precision of the analysis was better than 5%. (C) 2009 Elsevier B.V. All rights reserved.
Sun, TX,Liu, ZG,Li, YD,et al. Quantitative analysis of single aerosol particles using polycapillary X-ray optics[J]. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY,2009,64(11-12):1194-1197.
Sun, TX.,Liu, ZG.,Li, YD.,Wang, GF.,Zhu, GH.,...&徐清.(2009).Quantitative analysis of single aerosol particles using polycapillary X-ray optics.SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY,64(11-12),1194-1197.
Sun, TX,et al."Quantitative analysis of single aerosol particles using polycapillary X-ray optics".SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY 64.11-12(2009):1194-1197.