Determination of K, Ca, Fe and Ni in Leptinotarsa decemlineata (Say) by EDXRF spectroscopy

The metal content of Colorado potato beetles elytra in Turkey was determined using the energy dispersive X-ray fluorescence method. A radioisotope excited X-ray fluorescence analysis using the method of standard addition is applied for the elemental analysis of Colorado potato beetles elytra. An annular 50mCi241Am radioactive source and an annular 50mCi55Fe radioactive source were used for excitation of characteristic K X-rays. An Si(Li) detector which has a 147eV full-width at half-maximum for 5.9keV photons was used for intensity measurements. The procedure of sample preparation and the results of analysis were presented.