ABSTRACT
X-ray fluorescence (XRF) is convenient for elemental analysis for several reasons: (1) lack of sample preparation; (2) speed of analysis; (3) indifference to the chemical state of the analyte element; and (4) non-destruction of the sample (so that the sample may be stored and analyzed subsequently). The XRF technique is applicable to every element past the first row of the periodic table, whether in bulk, liquid or filter samples.
