3. Conclusion
A simple and effective method of rocks with different composition and elements content opening was developed.
This technique was verified on the reference materials samples. The accuracy of elements determination does not
exceed 28 % for Au and 30% for Pb, Ni and Co without separation of the sample matrix. Developed procedure
shows high convergence in the determination of analyzed elements.
Acknowledgements
The work was supported by State Program: Science«Nauka» №1.1312.2014.