{"id":11226,"date":"2020-12-08T13:50:02","date_gmt":"2020-12-08T13:50:02","guid":{"rendered":"https:\/\/www.thermofisher.com\/blog\/metals\/?p=11226"},"modified":"2026-07-30T20:47:46","modified_gmt":"2026-07-30T20:47:46","slug":"comparing-xrf-analyzers-for-precious-metals","status":"publish","type":"post","link":"https:\/\/www.thermofisher.com\/blog\/metals\/comparing-xrf-analyzers-for-precious-metals\/","title":{"rendered":"Comparing XRF Analyzers for Precious Metals"},"content":{"rendered":"

\"Comparing<\/p>\n

We have\u00a0previously written<\/a>\u00a0about the need to use XRF technology to confirm or identify gold and other precious metal content in jewelry, decorative pieces, coins, and other items. This time of year can bring the best out of people, but occasionally it brings out the worst, and we have warned\u00a0\u00a0jewelers, pawnbrokers, and gold buyers that they need to be aware of\u00a0scams during the holiday season<\/a>. We\u2019ve noted scams involving fake gold bead necklaces, coins that don\u2019t make the grade, bad Krugerrands, and gold-plated tungsten or other metal items presented as solid precious metal pieces.<\/p>\n

We\u2019ve also discussed the various verification tests that business use to combat these risks, including the scratch and acid test, which is widely used but not very accurate and potentially dangerous. The most precise method is fire assay, but this method destroys the sample \u2013 something you do not want to do with a piece of jewelry. Laboratory methods with expensive machines require extensive sample preparation. Finally, there are\u00a0portable XRF analyzers<\/a>.<\/p>\n

X-ray fluorescence spectroscopy<\/a>\u00a0(XRF) is a non-destructive analytical technique used to determine the elemental composition of materials. Handheld XRF analyzers work by measuring the fluorescent (or secondary) X-rays emitted from a sample when excited by a primary X-ray source. Each of the elements present in a sample produces a set of characteristic fluorescent X-rays, or \u201cunique fingerprints\u201d. These \u201cfingerprints\u201d are distinct for each element, making handheld XRF analysis an excellent tool for quantitative and qualitative measurements of precious metals, as well as other metals and alloys.<\/p>\n

There are different types of\u00a0portable XRF analyzers<\/a>, depending on the need. For example, manufacturers may be worried about trace lead in consumer goods, carbon in steel pipes, or metals and alloys used in critical parts, while jewelry manufacturers are concerned about the accurate gold, silver, or platinum content.\u00a0\u00a0There are different XRF analyzers that are best for different applications.<\/p>\n

How does one know which XRF analyzer is best for the job?\u00a0\u00a0We\u2019ve created a chart to\u00a0compare portable XRF analyzers<\/a>\u00a0and used a rating system to show which ones are best for various applications.<\/p>\n

Since gold and\u00a0precious metals<\/a>\u00a0are usually in demand this time of year, it is important that jewelry stores and pawn shops have the appropriate tool on hand to verify gold and precious metal content of their pieces \u2013 especially since some of these XRF instruments are equipped with\u00a0proprietary gold-plating detection technology<\/a>\u00a0that can alert operators to the probability that an item is plated, regardless of the gold concentration of the plated surface layer. The latest technology works for vermeil (gold-plated silver), as well as gold-plated copper, steel, tungsten and any other non-gold substrate. This is especially useful in the jewelry business.<\/p>\n

Another characteristic to take into consideration is how it will be used.\u00a0\u00a0Does the operation need an instrument that can sit on a jewelry counter and show the customer that the precious metals content in their piece of jewelry that they are either buying or selling is verified right in front of them?<\/p>\n

Take a look at the\u00a0XRF Analyzer Selection Guide<\/a>\u00a0and compare the various portable instruments and their specifications.\u00a0\u00a0You\u2019ll quickly find which analyzer is best for your operations.\u00a0\u00a0And if you need some help figuring it out, just ask.<\/p>\n","protected":false},"excerpt":{"rendered":"

We have\u00a0previously written\u00a0about the need to use XRF technology to confirm or identify gold and other precious metal content in jewelry, decorative pieces, coins, and other items. This time of year can bring the best out of people, but occasionally it brings out the worst, and we have warned\u00a0\u00a0jewelers, pawnbrokers, and gold buyers that they<\/p>\n","protected":false},"author":498,"featured_media":11230,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5,206],"tags":[],"division":[],"class_list":{"0":"post-11226","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-precious-metals","8":"category-steel","9":"entry"},"_selected_authors":[1417],"_selected_reviewers":[],"acf":[],"yoast_head":"\nComparing XRF Analyzers for Precious Metals - 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A recent \u00a0NBC Connecticut investigation uncovered fake American Eagle silver bullion coins being sold online at prices far below market value. Although the coins\u2026","rel":"","context":"In "Precious Metals"","block_context":{"text":"Precious Metals","link":"https:\/\/admin.acceleratingscience.com\/metals\/precious-metals\/"},"img":{"alt_text":"Silver coins and silver bullion","src":"https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/05\/iStock-482324309.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/05\/iStock-482324309.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/05\/iStock-482324309.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/05\/iStock-482324309.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/05\/iStock-482324309.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/05\/iStock-482324309.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":13418,"url":"https:\/\/www.thermofisher.com\/blog\/metals\/buyer-and-seller-beware-how-to-detect-fake-gold-in-current-times\/","url_meta":{"origin":11226,"position":1},"title":"Buyer and Seller Beware: How to Detect Fake Gold in Current Times","author":"Marlene Gasdia-Cochrane","date":"April 7, 2026","format":false,"excerpt":"A Practical Guide for Jewelers and Pawn Shop Owners The rise in gold prices and continued market volatility have made precious metals more attractive\u2014not just to legitimate sellers, but also to increasingly sophisticated counterfeiters. For jewelers, cash-for-gold operators, and pawn shop owners, the ability to accurately verify gold authenticity and\u2026","rel":"","context":"In "General\/Industry"","block_context":{"text":"General\/Industry","link":"https:\/\/admin.acceleratingscience.com\/metals\/general-industry-metals\/"},"img":{"alt_text":"Clasp on a 14k Gold necklace with markings on a black background","src":"https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/04\/iStock-1133424222_14k-scaled.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/04\/iStock-1133424222_14k-scaled.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/04\/iStock-1133424222_14k-scaled.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/04\/iStock-1133424222_14k-scaled.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/04\/iStock-1133424222_14k-scaled.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2026\/04\/iStock-1133424222_14k-scaled.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":13598,"url":"https:\/\/www.thermofisher.com\/blog\/metals\/how-rhodium-plating-impacts-gold-xrf-analysis-and-karat-verification\/","url_meta":{"origin":11226,"position":2},"title":"How Rhodium Plating Impacts Gold XRF Analysis and Karat Verification","author":"Marlene Gasdia-Cochrane","date":"July 28, 2026","format":false,"excerpt":"Summary Accurate gold analysis is essential for jewelry verification, precious metals trading, refining, and quality control. One of the most widely used methods for determining gold content is X-ray fluorescence (XRF) analysis, a non-destructive testing technique that quickly evaluates metal composition. However, rhodium plating\u2014a common surface treatment used on white\u2026","rel":"","context":"In "Metals & Alloys"","block_context":{"text":"Metals & Alloys","link":"https:\/\/admin.acceleratingscience.com\/metals\/metals-and-alloys\/"},"img":{"alt_text":"Banner of a cube symbolizing element number 45 of the periodic table. Rhodium. 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About 8,000 miles away in New York City, there was a gold buying rush and a cash-for-gold frenzy. Buyers and sellers are banking on the hope that the gold in the pieces\u2026","rel":"","context":"In "Precious Metals"","block_context":{"text":"Precious Metals","link":"https:\/\/admin.acceleratingscience.com\/metals\/precious-metals\/"},"img":{"alt_text":"Diwali Puja Thali With Flowers, Diya, And Gifts","src":"https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/iStock-2240362443-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/iStock-2240362443-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/iStock-2240362443-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/iStock-2240362443-1.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/iStock-2240362443-1.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/iStock-2240362443-1.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":10286,"url":"https:\/\/www.thermofisher.com\/blog\/metals\/a-valentines-special-best-metal-elements-for-a-sturdy-piece-of-jewelry\/","url_meta":{"origin":11226,"position":4},"title":"A Valentine\u2019s Special: Best Metal Elements for a Sturdy Piece of Jewelry","author":"Mark Lessard","date":"February 10, 2026","format":false,"excerpt":"A Pleasant Garden article noted that \"from a global perspective, nearly 6 million couples get engaged on February 14th.\"\u00a0It\u2019s no surprise that many of those who \u2018pop the question\u2019 choose to do it on the day known for its message of love and affection. Those who have bought an engagement\u2026","rel":"","context":"In "Precious Metals"","block_context":{"text":"Precious Metals","link":"https:\/\/admin.acceleratingscience.com\/metals\/precious-metals\/"},"img":{"alt_text":"ring in box with Valentine heart decorations","src":"https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2019\/02\/istock-96917265_valentinejewelry.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2019\/02\/istock-96917265_valentinejewelry.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2019\/02\/istock-96917265_valentinejewelry.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2019\/02\/istock-96917265_valentinejewelry.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1733,"url":"https:\/\/www.thermofisher.com\/blog\/metals\/heres-a-free-periodic-table-for-your-halloween-goody-bag\/","url_meta":{"origin":11226,"position":5},"title":"Here’s a Free Periodic Table for Your Halloween Goody-Bag","author":"Marlene Gasdia-Cochrane, Editor","date":"October 30, 2025","format":false,"excerpt":"No tricks here. Download this handy periodic table and X-ray energy reference guide to help in analyzing your metals samples. \u00a0It's our treat. Then visit our Steel Manufacturing and Precious Metals Analysis\u00a0 pages for more goodies. Download Periodic Table.\u00a0","rel":"","context":"In "General\/Industry"","block_context":{"text":"General\/Industry","link":"https:\/\/admin.acceleratingscience.com\/metals\/general-industry-metals\/"},"img":{"alt_text":"Halloween pumpkin with goodies","src":"https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/MetalsHalloween-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/MetalsHalloween-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/MetalsHalloween-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/MetalsHalloween-1.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2025\/10\/MetalsHalloween-1.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/admin.acceleratingscience.com\/metals\/wp-content\/uploads\/sites\/4\/2020\/12\/jewelry-set-macro-picture-id576745246-2.jpg","_links":{"self":[{"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/posts\/11226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/users\/498"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/comments?post=11226"}],"version-history":[{"count":1,"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/posts\/11226\/revisions"}],"predecessor-version":[{"id":13649,"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/posts\/11226\/revisions\/13649"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/media\/11230"}],"wp:attachment":[{"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/media?parent=11226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/categories?post=11226"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/tags?post=11226"},{"taxonomy":"division","embeddable":true,"href":"https:\/\/www.thermofisher.com\/blog\/metals\/wp-json\/wp\/v2\/division?post=11226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}