7


Fortunately, there are non-destructive testing methods regulators, manufacturers, retailers, and buyers can use to quickly and accurately measure gold purity. Advanced technologies, such as XRF analysers, are critically important for use in the gold industry, where the value of the commodity fl uctuates frequently.


Overcoming industry challenges with advanced technologies for non-destructive testing


XRF is a non-destructive analytical technique used to determine the elemental composition of materials. Handheld XRF analysers measure the fl uorescent, or secondary, X-rays emitted from a sample when excited by a primary X-ray source. Each element in a sample produces a set of characteristic fl uorescent X-rays, or ‘unique fi ngerprints’. These ‘fi ngerprints’ are distinct for each element, making handheld XRF analysis an excellent tool for quantitative and qualitative measurements. XRF technologies offer a standard analytical range of 22 elements so that users can measure the content of all precious metals without changing the analyser’s calibration – from gold to silver to platinum to palladium.


There are several benefi ts of using XRF technology for gold analysis. First, it provides a fast, accurate, and, most importantly, non-destructive method to test the purity and chemistry of all precious metals. Additionally, many analysers are handheld, offering point-and-shoot simplicity and delivering accurate analysis in just seconds on an easy- to-use device with a familiar digital interface. XRF technologies are a highly accurate solution that eliminates the need for testing with harsh chemicals.


Using XRF technologies, manufacturers can confi dently produce fi nished pieces, ensuring their reputation remains intact, and unauthenticated metals do not enter their production line. Retailers, such as pawn shops, can effi ciently identify gold-plated items


and precisely determine the presence and concentration of other trace alloying elements and dangerous heavy elements, which could impact valuation and future refi ning needs. This also helps them negotiate the best price for their business in real-time.


Navigating market volatility with real-time analysis and accurate data


Gold prices will continue to fl uctuate as a commodity linked to macroeconomic and geopolitical trends. Advanced technologies that offer real-time and accurate data are critical to helping buyers and sellers navigate market volatility. For regulators, advanced XRF technologies allow compliance with accurate data records as the fi ght against counterfeit gold continues.


Broader adoption of advanced XRF technologies allows for more sustainable and healthier practices across the gold industry. With less damage to items via acid testing, the industry can reduce waste and eliminate interaction with harmful acids, making for a healthier and safer gold ecosystem.


Peter Anzalone is the Commercial Director of Elemental Analysis at Thermo Fisher Scientifi c.


References


1. What Drives Gold Prices? - Federal Reserve Bank of Chicago: https://www.chicagofed.org/publications/ chicago-fed-letter/2021/464


2. Gold Price Outlook: 3 Reasons Record-Setting Rally Will Extend 8% in 2025 - Markets Insider: https:// markets.businessinsider.com/news/commodities/gold-price-record-outlook-3-reasons-continued-rally- goldman-sachs-2024-10


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