Depending on the nature of the material, the sample can be measured as the raw material, without preparation. This is the case of a solid sample with sufficient mechanical strength and good size, for example metal, glass or cut to size polymer. In other cases, the sample should be a preparation: – by mineralization – by fusion – by other solutions
Crushers for food analysis
HTDS offers you a range adapted to your grinding needs for precise and repeatable agri-food analysis. Because the quality of the result of an analysis depends on the quality of the sample to be analyzed, we offer hammer mills and disk mills for grinding adapted for your samples.
The principle of melting is to dissolve the sample in a borate salt (also called melting) melted at high temperature. After controlled cooling in a mold, a glass disk is formed ready for XRF analysis. Fusion is mainly used in areas where samples are difficult to mineralize and where conventional techniques become long, expensive, using strong acids such as HF, or leading to incomplete mineralization. This technique allows the complete mineralization of samples such as cements and their raw materials, ores, geological samples, alloys, phosphates or fertilizers, ceramics, catalysts (...). The preparation of glass discs makes it possible to circumvent the many disadvantages of pressed pellets (interference, multiplication of calibrations, risk of breaking the pellet in the XRF, influence of mineralogy and particle size, etc.), to gain precision, to facilitate analyzes by simplifying calibrations because less interference, to respond to analytical rates with multi-station devices (4 or 6) and the ability to automate this step (contact us).
With the evolution of quantification limits, sample preparation has become an important step in obtaining reliable and repeatable results. With microwave technology, mineralization became a perfectly mastered step, fast and reliable. The use of closed bombs prevents loss of elements unlike techniques in an open environment, and a very low acid consumption. The power control and the parameters (temperature and / or pressure) ensures repeatability and safety. Our mineralizing available in 8, 16 or 48 positions. For more information and adapt our proposal to your problem please contact us.