| 光谱学与光谱分析 |
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| Characteristics of Trace Elements in Freshwater and Seawater Cultured Pearls |
| ZHANG En1,2, HUANG Fu-quan1, WANG Zi-tong1, LI Qian1 |
1. School of Earth Science and Geological Engineering, Sun Yat-sen University，Guangzhou 510275, China
2. Guangdong Provincial Key Laboratory of Mineral Resources & Geological Processes，Guangzhou 510275, China |
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Abstract Trace elements in pearls have characteristic disciplines and functions. The previous work had paid attention to different characteristics of trace elements in freshwater and seawater cultured pearls, but only limited species of trace elements have been detected by former testing techniques and analysis methods, and the test results have not been further analyzed. With the advantages of detection in good capability and high speed, inductively coupled plasma mass spectrometer (ICP-MS) can concurrently test various trace and ultra-trace elements. In the present paper, trace elements of cultured pearls in freshwater and seawater were measured by ICP-MS, and analyzed compared by a method of data processing. The results show that: (1) The kinds of higher content of trace elements(Sr, Zn, Ni, Ba, Mn, Cr, Cu, Pb, Ti, Co, Ce, Zr, La, Rb)in cultured pearls are approximately the same, but the total amount of trace elements in freshwater cultured pearls is significantly less than that of seawater cultured pearls. (2) The content of trace elements (Sr, Mn, Ba, Ni, Cr, Pb) in freshwater cultured pearls is more regular, and has a relatively fixed sequence from high to low, namely Sr>Mn>Ba>Ni>Cr>Pb. The content of trace elements in seawater cultured pearls is quite different. Sr is enriched in all samples. There is no a stable order of contents for the other trace elements. (3) There is a significant correlation among some trace elements in cultured pearls. The conclusion is instructive to indicate cultured environment, cultured technology, identification, comprehensive development and utilization of cultured pearls.
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Received: 2013-10-09
Accepted: 2014-01-25
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Corresponding Authors:
ZHANG En
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