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With the advent of modern analytical techniques, it has become necessary to be able to perform a complete analysis from a single dissolution rate. In order to improve solution manufacturing, XRF Scientific has designed multiple models of fusion machines. These instruments provide many benefits, including increased productivity and repeatability and productivity, without the operator risk of manipulating hazardous reagents.

These processes are simpler, faster, and cleaner. The following distinguishes two types of ICP fusion that require specific conditions and environments. Based on more than 25 years of experience, XRF Scientific has developed the most suitable fusion machine and has made significant progress to meet these specific fusion requirements.

Rugged electric melting machine, designed to prepare 1 to 6 acid solutions for AA or ICP analysis. When running in ICP mode, the molten sample is automatically poured into a Teflon beaker containing a dilute acid solution. With the help of magnetic stirring, the beaker remains in place until it is completely dissolved.

The machine is equipped with an exhaust fan to remove the acid vapor generated when the hot liquid is poured into the beaker. Depending on the model, the ICP module can accept one, two or six 100 ml beakers. Each position is equipped with a separate magnetic stirrer.

Borate melting involves mixing a powder sample with a melting flux in a gold crucible with a platinum content of 5%, heating it to about 1000 – 1150 °C with stirring, until it is completely reacted and dissolved to form a uniform molten glass. Then the molten glass is poured into the beaker until the glass body is completely dissolved.

This method is currently the most widely used method for analyzing geology and fine materials. It can determine the main elements and a certain amount of elements in traces. One of the main advantages of xrFuse is that they are prepared for continuous dissolution. Fusion and digestion are fully automated in the machine.

The most commonly used fluxes and their application examples are listed below.

Use enough release agent to ensure that the transfer is complete. Typically, 0.5% lithium bromide.

Peroxide fusion involves mixing powder samples with alkali fusion flux in a zirconium or nickel crucible, and heating to about 600-800 °C with stirring, until the sample is completely reacted and dissolved in the flux.

The hot mixture is then cooled in situ to produce a glassy substance that is usually colored and easily soluble in dilute acid. In this type of fusion, reactions are carried out at extremely different temperatures, and they are sometimes very active, and there may be a risk of splashing.

Phoenix GO ICP is the perfect tool because it can be programmed with an unlimited number of heating steps to gently bring the mixture to temperature, all of which are done behind the safety gate to protect the operator. The following table shows the most commonly used fluxes and their application examples.

Their reactivity can be classified as follows: 1. Peroxide, 2. Hydroxide, 3. Carbonate

These new gas fusion machines are designed to perform multiple and repeatable fusions with hydroxides, peroxides and carbonates. These new Phoenix machines only use gas and do not require oxygen and compressed air. They are specially developed for high uptime applications and can withstand repeated exposure to harsh environments.

Phoenix GO 8000 ICP has 8 fusion stations and is designed for mass production. The user interface is designed in such a way that it can meet the needs of the most versatile applications with an unlimited number of configurable steps.

This information is derived from, reviewed, and adapted from materials provided by XRF Scientific.

For more information on this source, please visit XRF Scientific.

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