Chemplex Industries Inc

The sample pretreatment methods are constantly developing aiming to respond to the large variety of samples source and composition. The available methods and techniques used for sampling and sample preparation in order to determine organic and inorganic pollutants in air, water, soil and biota samples are presented.

Hello Muni.. The purpose of sample preparation is to have a processed sample that leads to consistent and better analytical results compared to the initial sample.

With XRF, most of the elements are only measured on the surface of the sample. This is why the condition of the sample surface with respect to smoothness and homogeneity (surface area and depth) is so essential.

XRF (X-ray fluorescence) is a non-destructive analytical technique used to determine the elemental composition of materials. XRF analyzers determine the chemistry of a sample by measuring the fluorescent (or secondary) X-ray emitted from a sample when it is excited by a primary X-ray source.

Hi Sophia, X-ray fluorescence is the emission of characteristic "secondary" X-rays from a material that has been excited by being bombarded with high-energy X-rays or gamma rays.