X-ray Fluorescence for Rookies: Demystifying the Technology Behind Converter Analysis

If you’re selling to a processor, you’ve probably heard of an x-ray fluorescence benchtop machine, also known as XRF. This machine performs assay analysis, allowing processors to accurately determine the exact amount of platinum, palladium, and rhodium in your converters. But how does this machine work and why do processors use it? Check out our video below or keep reading to know everything about XRF.

What is an XRF Benchtop Machine?

The X-Ray Fluorescence benchtop machine is a non-destructive technique to measure secondary fluorescent x-rays emitted by a sample. This device delivers reliable and quick results that processors use to determine the amount of PGMs contained in a converter load. Let’s dive into the technicalities and explore how this machine works.

How Does XRF Benchtop Analysis Work?

In the XRF machine, a narrow x-ray beam enters the sample and excites the atom. The atom then expels an electron from its inner shell, causing all the other electrons to move and fill the hole left behind by the expelled electron. Because they change places, the electrons release energy in the form of fluorescence. That creates a fingerprint, or a signal, of the element being measured.

Each signal is then measured to calculate the concentration of each precious metal. More signals mean a higher concentration of the metal, and vice versa.

Why Do Processors Use XRF?

Processors use this type of technology to analyze your material because of its precision and the speed of analysis. Compared to the XRF gun, for example, the XRF benchtop machine produces more accurate results. This means that when you receive your assay report, your recovery figures are as precise as can be, helping you hedge your metals accordingly.

At PMR, we use two technologies to analyze your converters, XRF and ICP, to ensure maximum accuracy. We want recyclers to have the information they need to make the best decisions for their converters and their businesses.

For more information on the assay process, check out our video or visit our Resource Center.