7Peinado F M,Ruano S M,Gonzalez M G B,et al.A rapid field procedure for screening trace elements in polluted soil using portable X-ray fluorescence(PXRF)[J].Geoderma,2010,159:76-82.
9Chris Parsons,Eva Margui Grabulosa,Eric Pili,et al.Quantification of trace arsentic in soils by field-portable X-ray flurescence spectrometry:Considerations for sample preparation and measurement conditions[J].Journal of Hazardous Materials,2013:1213-1222.
10Stephen Shefsky.Comparing filed portable X-ray fluorescence(XRF)to laboratory analysis of heavy metals in soil[C]//International Symposium of Field Screening Methods for Hazardous Wastes and Toxic Chemicals.Las Vegas,Nevada,USA:1997.