+AKA1012 I have sent your email address to our account representative. If you want additional information or a demo, you can see this page and click on "Contact Sales" www.thermoscientific.com/en/product/niton-xl2-xrf-precious-metal-analyzer.html

+Gince Ulaveon Our inhouse expert says: “The penetration depths for precious metals is typically around 10-15 microns”. For more information and specs, see: www.thermoscientific.com/en/product/niton-dxl-precious-metal-analyzer.html

+Portable Analytical Instruments 10-15 microns is 0.001-0.0015mm. If I had the gold bar as described in the site: ulgeesh.blogspot.com/2015/11/tidal-current-assessment-buka-passage.html. How would I be sure of the composition deeper inside the bar?

+Gince Ulaveon If a non-gold layer is hidden underneath the penetration depth of the x-rays the user will need to defer to other methods, that could either identify it and/or characterize itscomposition.

+tess99991 Thanks for your inquiry. Our technical support engineer suggests you call our support line and he will walk you through it. (Dial 1-800-875-1578 option 2 then option 2.) The answer is a little more involved because we need to know which testing mode that you are using and what type of samples.

+Mufaddal Siraj Thank you for inquiring. For Dubai sales, please contact Roel Crama at: UAENiton Analyzers Europe Joseph-Dollinger-Bogen 9 D-80807 Munich GERMANY +49 89 36 81 38-0 (Work) +31 651011067 (Mobile) [email protected]

+Arvin Umali Thank you for asking. To see a demonstration in the Philippines, contact Ed Bates, President: Brownstone Asia-Tech Inc. No. 10-A (Old No. 310) H. Poblador St. Barangay Hagdan Bato Libis Mandaluyong City 1552 Philippines Tel: +63-2 [email protected]

Hi Saman -- Thanks for your comment, but not sure of your question: More accurate than what? For measuring samples of unknown chemical composition in which concentrations of light and heavy elements may vary from parts per million (ppm) to high percent levels, our XRF analyzers feature Fundamental Parameters (FP) calibration to simultaneously compensate for a wide variety of geometric effects, x-ray absorption, and secondary and tertiary fluorescent effects. This universal calibration requires minimal training and measures the full range of element concentrations in a wide variety of samples without any additional user input. Portable XRF analyzers featuring GOLDD™ technology (Geometrically Optimized Large Drift Detector), provide faster measurement times and lower detection limits - up to 10-times faster than conventional Si-PIN detectors and up to 3-times more precise than conventional smaller silicon drift detectors (SDD). Here is some additional information: www.thermoscientific.com/content/dam/tfs/ATG/CAD/CAD%20Documents/Catalogs%20&%20Brochures/Elemental%20Analysis/XRF/D00832~.pdf Hope that answers your question. Feel free to contact us for a demonstration.

Hi Mark-- Yes. In addition to determining if a gold piece is plated, and the alloy composition (up-to 22 elements reported), these instruments also will tell you the Karat value. The gold karat value is a measure for the gold purity. As an example, 24-karat ring is made out of pure gold, an 18-karat ring is 75% pure gold (18/24). Take a look at this page for a screen shot and some additional videos: www.niton.com/en/metal-and-alloy-analysis/applications/goldanalysis

thevillaman villaman Visit this page to find your nearest representative: www.niton.com/en/contact/headquarters Thank you for inquiring.

Thank you for your comment. The instrument that you saw is a Thermo Scientific Niton XL3t GOLDD analyzer. And yes, it can analyze gold. The detection limit varies depending on the matrix of your sample. You can see more mining applications here: www.niton.com/en/mining/applications -- Regards, Ali