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Determination of copper impurity in gold ornaments using source excited x-ray fluorescence

✍ Scribed by M. Hussain; F. Hossain

Publisher
Elsevier Science
Year
1988
Weight
200 KB
Volume
39
Category
Article
ISSN
0883-2889

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✦ Synopsis

For assessing the purity of gold used in jewellery an attempt has been made to use a low cost non-destructive x-ray fluorescence technique employing a ~Β°gCd x-ray source, a proportional counter and a pair of balanced filters for copper which is the impurity element added to gold in Bangladesh. Matrix absorption and enhancement corrections have been made following Sparks. The method allows determination of the concentration of gold in ornaments with an error of ~2%.

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