Alloy Chemistry and Karat Classification with Nondestructive and Nonintrusive Testing

In present economical set up, fast and precise results have become more important than ever. The Evident Innov-X GoldXpert XRF analyzer helps in meeting this requirement as it offers an affordable and user-friendly method to acquire alloy chemistry and karat classification with a single nondestructive test.

Whether selling or producing jewelry, purchasing gold, fabricating metal, or recycling scrap metal, the GoldXpert portable benchtop XRF analyzer provides a fast and highly precise method to measure gold content (karatage) for pricing and quality control.

XRF Method for Chemistry and Karat Classification

On-the-spot gold karat classification, 0-24kt

Figure 1. On-the-spot gold karat classification, 0-24kt

XRF is an industry-proven method of karating and chemistry analysis of valuable metals samples, including fineness and purity. When compared to chemical and fire assay tests, XRF analysis is a quick and low-cost alternative method and provides instant analysis of platinum, silver or other materials. These benefits offered by XRF ensure dealer reliability and increase confidence in customers.

GoldXpert XRF analyzer

Figure 2. GoldXpert XRF analyzer

The GoldXpert with an Si PIN detector system was used to produce the accuracy data given below, and illustrates the standard performance anticipated from an Si PIN base system.

% gold GoldXpert vs. gold certified

Figure 3. % gold GoldXpert vs. gold certified

% silver GoldXpert vs. silver certified

Figure 4. % silver GoldXpert vs. silver certified

% nickel GoldXpert vs. nickel certified

Figure 5. % nickel GoldXpert vs. nickel certified

GoldXpert XRF Analyzer: Advanced Testing Solution for Precious Metals

The GoldXpert XRF analyzer can even be networked for QA and QC jobs. It is suitable for consumer showroom environment and also acts as a mobile analyzer when used with a rechargeable Li ION battery set. Since the GoldXpert is compact and lightweight, it can be easily transported anywhere and anyplace for testing.

Features of GoldXpert XRF Analyzer

The GoldXpert XRF analyzer includes a number of features such as a leaded glass viewing window for easy viewing of sample in chamber, built-in camera, small spot collimation for analysis; can switch between 3-mm and 10-mm diameter spots with a simple push of a button, 200 µA current, 4 W X-Ray tube, and improved beam settings for precise analysis.

In addition, the safe-closed beam XRF system features an LED-lit sample chamber, an analysis indicator light with 360° visibility, a USB interface for ultra-fast printing and data export, a bright and intuitive color touch screen display, and a Silicon Drift Detector system for improved sensitivity and precision.

Conclusion

When it comes to gold and valuable metal assets, customers tend to be very selective and look for reliable solutions. The Evident Innov-X analyzer meets this need by providing easy and instant analysis and thus improves customers’ confidence and ensures dealer reliability.

This information has been sourced, reviewed and adapted from materials provided by Evident (XRF / XRD).

For more information on this source, please visit Evident (XRF / XRD).

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