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Gold Quality Assurance: A Guide to Selecting the Best Gold Tester
Date: 27/10/2023 | read: 335

Gold has been a symbol of wealth, luxury, and beauty for centuries. Whether you are a jeweler, an investor, or someone looking to buy or sell gold, ensuring the quality and authenticity of this precious metal is of utmost importance. In your pursuit of gold quality assurance, a key tool is a gold testing instrument. Testing the purity of gold is crucial for accurately assessing its value.


 

There are several types of gold testing instruments available in the market, each with its unique features and capabilities. Let's explore them:


1. Acid Test Kits: Acid test kits are one of the traditional methods for testing the purity of gold.They involve applying nitric acid to a small scratch on the gold item.The reaction with the acid determines the gold's purity based on the color change.Acid test kits are affordable but have limitations in terms of accuracy and ease of use.


2. Electronic Gold Testers:Electronic gold testers are highly accurate and non-destructive.They use electrical conductivity to assess the gold's purity.These testers provide quick and reliable results but can be relatively expensive.


3. X-Ray Fluorescence (XRF) Analyzers:XRF analyzers use X-ray technology to determine the composition of gold.They are highly accurate and can provide detailed information about impurities.XRF analyzers are typically used in professional settings and are relatively expensive.


Specific Gravity Testers:Specific gravity testers measure the density of a gold item.They are less common but provide accurate results without damaging the gold.Specific gravity testers require some expertise to use effectively.


Selecting the best gold testing instrument depends on your specific needs and budget. Consider factors like accuracy, cost, ease of use, portability, durability, and testing frequency when making your choice. Accurate gold testing not only ensures that you get the value you deserve but also helps maintain trust in the world of gold, whether you're a jeweler, investor, or simply someone who appreciates the beauty of this precious metal.


 

X-Ray Fluorescence (XRF) Analyzer


Selecting the best gold testing instrument depends on your specific needs and budget. Factors to consider when making this decision include accuracy, budget, ease of use, portability, durability, and testing frequency. Therefore, in this article, the author highly recommends the X-Ray Fluorescence (XRF) analyzer. Among the numerous XRF analyzer products available, why Terra990 Handheld XRF Analyzer is the good choice for jewelry testing?With the Terra 990 Handheld XRF Analyzer, accurate quantitative analysis of precious metal elements can be achieved. The instrument has good performance, easy operation and easy to read results. At the same time, Terra 990 is non-destructive testing, which avoids the possible impact of testing and analysis on the appearance and performance of the gold and jewelry to be tested.The Terra 990 Handheld XRF Precious Metal Analyzer provides a complete solution for elemental analysis in the production, sale and recycling of precious metal products. The instrument is equipped with a high-performance X-ray excitation device and Si-PIN detector, which can achieve accurate quantitative analysis. Customers can also choose a silicon drift detector (SDD) to improve the resolution of the instrument and reduce the time required for analysis.


The quantitative analysis of the Terra 990 handheld XRF elemental analyzer is realized by the Fundamental Parameter (FP) method. The quantitative analysis accuracy of the Fundamental Parameter method is good, and in the calibration work of the subsequent analysis, there is no need to use additional standard samples. The empirical correction method has higher analysis efficiency in practical applications. According to the quantitative analysis results of gold (Au) and silver (Ag), we perform linear fitting with the actual content and measured values of the elements as the horizontal and vertical axes respectively:



best gold tester


The results show that the instrument can accurately reflect the actual content of elements in different samples, and has good on-site analysis ability.


 In order to test the stability and repeatability of the Terra 990 handheld XRF elemental analyzer, we selected standard samples containing gold (Au), silver (Ag), and palladium (Pd) three precious metal elements for 10 tests, each test time It is 30s (data units are all percentages), and the test results are compared with the sample data:

best gold tester


The test results show that the analysis results of the Terra 990 handheld XRF elemental analyzer are stable, accurate and repeatable, and the reliability of the instrument is good.


AXR Scientific selected three different types of gold bracelets from three well-known national gold jewelry brands: pure gold (gold content not less than 99.9%), pure gold (gold content not less than 99%), rose gold (gold content not less than 99%) at 75%), and then analyzed it using a Terra 990 handheld XRF elemental analyzer with the following results:



best gold tester



Benchtop Gold Analyzer


AXR AURORA Benchtop Gold analyzer offers a rapid and remarkably precise method for assessing karat or gold content, serving quality control, pricing, and practical utilization needs. It empowers users to conduct an immediate, cost-efficient, and entirely nondestructive examination to ascertain gold content and authenticate alloy composition.


Beyond gold, the device delivers exceptional performance for various other valuable metals of significance. The analyzers are equipped with a comprehensive precious metals suite encompassing elements such as Cr, Mn, Fe, Co, Ni, Cu, Zn, Ir, Pt, Au, Rh, Ru, Pb, Bi, Zr, Pd, Ag, Sn, Sb, Cd, In, Ga, Ge, and W. ( Plus Os for SDD detector)


In a matter of seconds, you can accurately measure the precise content of precious metals in jewelry, coins, and other valuable items using the AXR AURORA benchtop gold analyzer.

 

 best gold tester


Conclusion


When it comes to gold quality assurance, selecting the right and best gold tester is crucial. The choice of a gold tester depends on factors like accuracy, budget, ease of use, portability, and your specific testing needs. Remember that accurate gold testing not only ensures that you receive the value you deserve but also helps maintain the integrity of this precious metal's market. Whether you're a jeweler, investor, or someone who simply appreciates the beauty of gold, the right gold tester is your key to maintaining trust in the world of gold.