| Expertize and diagnostics at the Russian State Depository for precious metals and gems | |
| ArticleName | Nondestructive methods of analysis of chemical composition of standard and measured gold ingots |
| ArticleAuthor | Taldonov Yu. V., Zhitenko L. P., Obrezumov V. P., Ozerova L. E. |
| ArticleAuthorData | Yu. V. Taldonov, Chief Expert; L. P. Zhitenko, Candidate of Chemistry Science, Chief Expert; V. P. Obrezumov, Candidate of Engineering Science, Deputy Head of Department; L. E. Ozerova, Chief Expert, phone: (499) 249-88-88; Gokhran of Russia. |
| Abstract | The results have been presented of us ing methods of laser ablation ICP mass spectrometry (LA-ICP-MS) and spark ablation ICP atomic emission spectrometry (SA-ICP-OES) for impurity control (28 impurity elements) of refined gold standard and small bars. The methods can be considered as nondestructive ones. A comparison of LA-ICP-MS and SA-ICP-OES was made as for the following features: sample requirements, impurity elements detection limits, spot diameter on a sample surface, the loss of a sample mass, analysis duration, precision. |
| keywords | Gold bars, non-destructive methods, ICP mass-spectrometry, ICP atomic emission spectrometry, spark ablation, laser ablation, impurity elements, limits of detection. |
| References | 1. Zhitenko L. P., Taldonov Yu. V., Ozerova L. E., Obrezumov V. P. Zavodskaya laboratoriya. Factory laboratory. 2001. Vol. 67, No. 6. pp. 22–24. 2. Taldonov Yu. V., Obrezumov V. P., Ozerova L. E., Zhitenko L. P. XVII Mezhdunar. Chernyaevskaya konf. po khimii, analizu i tekhnologii platinovykh metallov : tez. dokl. XVII Intern. (Chernyaev Conf. on Chemistry, Analysis and Technology of Platinum Metals : Heads of Reports). Moscow, 2001. p. 180. 3. GOST 28058–89. Zoloto v slitkakh. Tekhnicheskie usloviya. Gold in ingots. Specification. Moscow, 1999. 4. ASTM Standard B 562–95. Standard Specification for Refined Gold. Annual Book of ASTM Standards. 1997. Vol.03.04. 5. GOST 27973.2–88. Zoloto. Metod atomno-emissionnogo analiza s induktsionnoy plazmoy. Gold. Method of atomic emission analysis with inductive plasma. Moscow, 1989. — 4 pp. 6. GOST R 53372–2009. Zoloto. Metody analiza. Gold. Method of analysis. Moscow, 2009. 36 pp. |
| Language of full-text | russian |
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