Analysis of rare earth elements using an automatic titration device in accordance with ISO 23597.
AN-T-249
Measurement of rare earth elements (REE) by photometric titration in accordance with ISO 23597.
In titration using the OptoRoad M2, a sensor for photometric titration, it has been demonstrated that the recovery rate for rare earth elements is approximately 100%, achieving high accuracy and excellent reproducibility.
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basic information
Application of the metronome automatic titration device.
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Applications/Examples of results
Rare earth elements (REE) are sold as metal ingots, metal powders, rare earth oxides (REO), alloys, or salts after being mined and separated from deposits and refined. The purity of rare earth oxides (REO) is usually over 97%, while the purity of ingots and powders is at least 99%. The mass fraction of rare earth elements in these products is an important quality indicator and a crucial factor that influences price and applications. Generally, high-purity rare earth elements are dissolved in acid, and their purity is measured by various analytical methods. One particularly important method is the titration method using xylenol orange as an indicator (ISO 23597). The titration method is an absolute measurement method and has many advantages compared to other established analytical techniques such as atomic absorption spectroscopy (AAS).
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Company information
Metrom AG, based in Herisau, Switzerland, is a leading company specializing in ion analysis with over 70 years of history. It provides products and services in more than 140 countries worldwide. Based on Swiss technology developed over many years, the equipment comes with a 3-year warranty.
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