Jewellery and Precious Metals Analysis

X-Strata980 for analysis of
plated precious metals

Precious metals such as Gold (Au), Platinum (Pt), Silver (Ag), Rhodium (Rh) etc. are used in the manufacture of jewellery and fashion accessories. They can be the main components, or be used as a thin coating for surface finish.

Composition analysis at the time of manufacturing, casting, selling/buying, recycling, or refining is needed to ensure quality and value of the product.

For plated fashion and custom jewellery and accessories the thickness of the plated precious metal must be controlled to control production cost, and ensure final aspect, quality, and durability.

Oxford Instruments’ XRF analysers X-Strata980,CMI900 and handheld
X-MET5000 are all simple, rapid, and non-destructive solutions for accurate precious metals composition analysis and coating thickness analysis.

For more product features, please download the X-Strata980, CMI900,
X-MET5000 Jewellery brochures. Click the links on the right.

Oxford Instruments is proud to launch a NEW faster, lighter and smaller handheld XRF analyser -
the X-MET7000. With one pull of the trigger, the NEW X-MET7000 delivers faster than ever results for materials analysis, verification and screening. Take a closer look at the NEW X-MET7000. Click the link on the right.

X-Strata980 - Rapid assay
CMI900 Series - Instant Assayer
X-MET5000 - Handheld tester

Rapid, non-destructive assay and trace elements analysis in gold and precious metals

The X-Strata980 enables the user to:

Analyse each melt before casting, preventing costly rejects

Screens dore bars, jewellery, and precious metal scrap for karat analysis, enabling rapid assessment of quality and value without destroying the sample

Measure multiple layers thickness (e.g. Au over Ni over brass) to ensure optimised process and cost control

Advantages

Accurate
0.1-0.15 Wt% Au typical using 120 seconds analysis time
Fast, simultaneous analysis
25mm2 semiconductor detector enables user to analyse many elements using one single condition
Trace elements analysis
100 Watt X-ray tube provides high sensitivity and low limits of detection for tramp elements such as Ir, Ru, Pb, Cd...
Analysis of small to large samples
Giant chamber accommodates jewellery items, dore bars, etc. of all shapes and sizes

Key features

Non-destructive, field-proven energy dispersive X-ray fluorescence (EDXRF) technology
Rapid composition and coating thickness analysis
Measurement methods according to ISO 3497, ASTM B568 and DIN 50987
Intuitive WindowsTM-based SmartLink Fundamental Parameters (FP) software maximises user productivity, with standard-free and standards-based analysis
Large, clear display of measurement area on sample
Large chamber, for easy sample introduction, and the analysis of samples small and large
Precision for gold (Au) ≤ 0.1 wt% at 95% confidence level
Results displayed as karat or wt%
Powerful and flexible report generator, with optional results export to Excel

Gold analysis using X-Strata980

Rapid, non-destructive karat analysis for gold jewellery and precious metals

CMI900 Series Instant Assayer is an accurate showroom solution for assayers to verify jewellery

Accurate
0.25 Wt% Au typical using 120 seconds analysis time
Rapid screening of inventory for suspect under-karat jewellery
Easy to use
Reliable results with minimum user training required
Non-destructive analysis
No sample preparation, no chemicals, no waste
Analysis of small to large samples
Sample chamber can accommodate samples up to 6.3” (160mm) high

Key features

Non-destructive, field-proven energy dispersive X-ray fluorescence (EDXRF) technology
Composition and coating thickness analysis for elements from Ti22 to U92
Measurement methods according to ISO 3497, ASTM B568 and DIN 50987
Intuitive WindowsTM-based SmartLink Fundamental Parameters (FP) software maximises user productivity, with standardfree and standards-based analysis
Precision for gold (Au) ≤ 0.1 wt%
Results displayed as karat or wt%
Video camera providing large, clear sample image
Precise crosshair for accurate sample positioning
Powerful and flexible report generator
Miniwell base, for the analysis of samples small and large
0.3mm diameter collimator for analysis of individual small features such as links and clasps of a necklace

Fastest and easiest analysis method available for analyzing
precious metals in jewelry

Determine the value of gold and precious metal
jewelry instantly
Rapid and accurate analysis of Au, Ag, Pd, Pt, Ir etc.
All elements measured simultaneously
Accuracy of the analysis is to within 0.15 weight % of
fire assay and chemical analysis methods
Minimal or no sample preparation needed
Totally non-destructive method. The measured surface will
remain in perfect condition, no material loss
Analysis can be done either on raw materials or finished
products
Absolutely no chemicals needed
Results can be displayed in % weight or karat

Easy and simple to use

Simple point and shoot analysis. Short learning
curve – no previous experience needed
Ready to use straight out of the box
Minimal need for maintenance
Check sample provided for verifying the
analyzer performance
Virtually unlimited data storage. Results can
easily be downloaded to computer by using a
memory card reader or Bluetooth connection
User customizable user interface with result
format function. Create your own tests for
fast decision making
User interface available in 10+ languages

Use Oxford Instruments' genuine accessories to boost productivity even further

Laboratory quality Bench-Top Stand with dual
safety interlocks and visible “X-Rays on” warning
light for ultimate comfort and radiation safety.
Turns X-MET handheld analyzer into laboratory
unit in a matter of seconds
Compact Sample Bag Adaptor for convenient
analysis of small objects such as rings,
necklaces etc.