Determination of trace elements in suspensions and filtrates of drinking and surface water by wavelength-dispersive X-ray fluorescence spectrometry

Anal Bioanal Chem. 2006 Apr;384(7-8):1600-4. doi: 10.1007/s00216-006-0328-2. Epub 2006 Mar 15.

Abstract

An X-ray fluorescence method (XRF) is presented that allowed low detection limits (at the 0.1-23 ng mL(-1) level) to be obtained for Cr, Mn, Fe, Ni, Zn, Sr, Pb, Bi and Br in water. The samples were prepared using a thin layer method. Trace elements were determined via the calibration curve and standard addition. Absorption effects and inhomogenities in prepared samples were checked for using the emission-transmission method and internal standards, respectively. The results from the XRF method were compared with the results from the inductively coupled plasma atomic emission spectrometry method.