| Microanalysis of silver jewellery by laser-ablation laser-induced breakdown spectroscopy with enhanced sensitivity and minimal sample ablation |
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| 作者姓名： | Junyu Mo Yuqi Chen Runhua Li Qi Zhou Yang Lou |
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| 基金项目： | This work was financially supported by the National ＂973＂ Program of China （No. 2012CB921900）, the National Natural Science Foundation of China （Nos. 11274123 and 11304100）, and the Basic Scientific Research Program of South China University of Technology （No. 2014ZZ0066）. |
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| 摘 要： | Laser-ablation laser-induced breakdown spectroscopy(LA-LIBS) based on single Nd:YAG laser is used to analyze copper impurity in silver jewellery with enhanced sensitivity and minimal sample ablation. 6-30 folds signal enhancement can be achieved under the re-excitation of the breakdown laser and the spatial resolution is only determined by the ablation laser. 50 ppm limit of detection of copper is achieved when the crater diameter is 17.2 μm under current experimental condition. This technique gives higher analysis sensitivity under the same sample ablation in comparison with single pulse(SP) LIBS. It is useful for high sensitive element microanalysis of precious samples.
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| 关 键 词： | 激光诱导 激光烧蚀 灵敏度 光谱仪 样品 击穿 珠宝 金银 |
| 收稿时间： | 2014/3/1 |
Microanalysis of silver jewellery by laser-ablation laser-induced breakdown spectroscopy with enhanced sensitivity and minimal sample ablation |
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| Junyu Mo,Yuqi Chen,Runhua Li,Qi Zhou,Yang Lou.Microanalysis of silver jewellery by laser-ablation laser-induced breakdown spectroscopy with enhanced sensitivity and minimal sample ablation[J].中国光学快报(英文版),2014,12(8):83001-87. |
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| Institution: | Department of Physics, School of Science, South China University of Technology, Cuangzhou 510641, China |
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| Abstract: | |
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| Keywords: | 300 6365 300 6210 300 6190 |
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