In general, X-ray fluorescence spectrometry (XRF) method is used for the quantitative and qualitative evaluation of characteristic X-rays and scattering photons resulting from photon matter interaction. In the laboratories, the energy of the X-rays obtained from the analyzed sample is calculated by using XRF device and these rays are determined and the element amounts are calculated. XRF method, fast, sensitive and easy to apply because it is a widely used method in scientific and technological research. At the same time, this method does not require much sampling and does not damage the analyzed material.

The XRF method allows semi-quantitative analysis of heavy metal concentrations in percent and ppm in all forms of sample, such as solid, water, oil and petroleum products such as minerals, metals and polymers, and any form of thin film and pressed powder. If appropriate standard materials are used, full quantitative analyzes are performed precisely from ppm to percent.

Quantitative analysis (quantitative analysis) is an analysis method used in analytical chemistry to determine not only what elements are contained in a substance, but how many elements are present in that substance. So the results are numerical. In semi-quantitative analyzes, the results are expressed as the approximate quantity of the substance measured, such as trace amount or intermediate amount. Some results are given as the number of cells per microscopic field.

In non-parametric analysis methods, semi-quantitative values ​​are used instead of the actual values ​​of the measurements. This method is generally used when there is not much information about the condition being questioned.

Within the scope of packaging analysis in advanced laboratories, studies are carried out for the determination of semi-quantitative elements of packaging materials and packaging materials by XRF method. These analyzes are based on standards and test methods published by national and international organizations.