A method for determining a material composition of a material sample

Radiating method for determining the material composition of a material sample radiation (12) with the following method steps: receiving (P2) of a spectrum of the deposited material in a detector by the radiation energy; Determining a first energy deposited in a first energy (F1), a second energy deposited in a second energy (F2) and a deposited in a third energy third energy (F3); Associating (P4) of a first color parameter (F1) to the first deposited energy, a second color parameter (F2) to the second deposited energy and a third color parameter (F3) to the third deposited energy and comparing (P5) of the associated color parameter (F1, F2, F3) with predetermined values ​​for each color parameter (R1, R2, R3), wherein the predetermined values ​​(R1, R2, R3 corresponding to) typical color parameters of a predetermined material composition.