Determination of Dispersed Elements in Metal Sulfide Ores by Inductively Coupled Plasma-Mass Spectrometry Using Microwave Digestion
BACKGROUND Copper nickel and zinc concentrates all belong to metal sulfide minerals and are import commodities. The rapid and accurate analysis of dispersed elements in these samples is beneficial to the comprehensive utilization of mineral. However, the content of rare elements in such minerals is...
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| Format: | Article |
| Language: | English |
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Science Press, PR China
2019-11-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.201805300066 |
| _version_ | 1797953834919657472 |
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| author | SHI Jin-min FENG Ting-jian FU Peng-fei TANG Yong-wu CHEN Da-lin ZHANG Chun-xiang YAN Na |
| author_facet | SHI Jin-min FENG Ting-jian FU Peng-fei TANG Yong-wu CHEN Da-lin ZHANG Chun-xiang YAN Na |
| author_sort | SHI Jin-min |
| collection | DOAJ |
| description | BACKGROUND Copper nickel and zinc concentrates all belong to metal sulfide minerals and are import commodities. The rapid and accurate analysis of dispersed elements in these samples is beneficial to the comprehensive utilization of mineral. However, the content of rare elements in such minerals is extremely low, and the properties of each element are different. In particular, Ge and Se cannot be precisely determined due to volatilization loss in wet digestion, and it is difficult to simultaneously measure various elements. OBJECTIVES To simultaneously determine the various elements in the sample. METHODS Copper, zinc and nickel concentrates were used as representative sulfide minerals. The sample was pre-sealed by microwave digestion, and the content of rare elements was determined by inductively coupled plasma-mass spectrometry (ICP-MS). Simultaneous determination of various elements was realized. The experimental conditions of total solid solution, internal standard, mass spectrum interference elimination and pretreatment acid selection were compared. RESULTS During determination of Ga, Ge, Se, Cd, In, Te, La and Tl by microwave digestion in ICP-MS analysis, total amount of solid solution, internal standard, and mass spectrum interference elimination conditions was consistent in three types of metal sulfide ores. Unfortunately, the acid types were not the same. HNO3-HCl-HF-H2O2 system was more suitable for measuring Ga, Ge, Se, Cd, In, Te, La and Tl in nickel and zinc concentrates, and Ga, Ge, Se, Cd, In, La and Tl in copper concentrate. The recoveries of these elements ranged from 85.5% to 116.6%. The HCl-HNO3 (3:1) system was more suitable for detecting Te in copper concentrate. CONCLUSIONS The method is simple, and the simultaneous determination of multiple elements is realized. Other factors of the method are the same, the acid digestion system is the key to selection. |
| first_indexed | 2024-04-10T23:08:22Z |
| format | Article |
| id | doaj.art-e08df1bf8f4a45e793511885c3390894 |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T23:08:22Z |
| publishDate | 2019-11-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-e08df1bf8f4a45e793511885c33908942023-01-13T10:03:32ZengScience Press, PR ChinaYankuang ceshi0254-53572019-11-0138663163910.15898/j.cnki.11-2131/td.201805300066ykcs-38-6-631Determination of Dispersed Elements in Metal Sulfide Ores by Inductively Coupled Plasma-Mass Spectrometry Using Microwave DigestionSHI Jin-min0FENG Ting-jian1FU Peng-fei2TANG Yong-wu3CHEN Da-lin4ZHANG Chun-xiang5YAN Na6Lanzhou Customs Technology Center, Lanzhou 730010, ChinaGansu Co., LTD, China Inspection and Certification Group, Lanzhou 730010, ChinaLanzhou Customs Technology Center, Lanzhou 730010, ChinaJinchuan Group Co. LTD, Jinchuan 737100, ChinaJinchuan Group Co. LTD, Jinchuan 737100, ChinaGansu Co., LTD, China Inspection and Certification Group, Lanzhou 730010, ChinaLanzhou Customs Technology Center, Lanzhou 730010, ChinaBACKGROUND Copper nickel and zinc concentrates all belong to metal sulfide minerals and are import commodities. The rapid and accurate analysis of dispersed elements in these samples is beneficial to the comprehensive utilization of mineral. However, the content of rare elements in such minerals is extremely low, and the properties of each element are different. In particular, Ge and Se cannot be precisely determined due to volatilization loss in wet digestion, and it is difficult to simultaneously measure various elements. OBJECTIVES To simultaneously determine the various elements in the sample. METHODS Copper, zinc and nickel concentrates were used as representative sulfide minerals. The sample was pre-sealed by microwave digestion, and the content of rare elements was determined by inductively coupled plasma-mass spectrometry (ICP-MS). Simultaneous determination of various elements was realized. The experimental conditions of total solid solution, internal standard, mass spectrum interference elimination and pretreatment acid selection were compared. RESULTS During determination of Ga, Ge, Se, Cd, In, Te, La and Tl by microwave digestion in ICP-MS analysis, total amount of solid solution, internal standard, and mass spectrum interference elimination conditions was consistent in three types of metal sulfide ores. Unfortunately, the acid types were not the same. HNO3-HCl-HF-H2O2 system was more suitable for measuring Ga, Ge, Se, Cd, In, Te, La and Tl in nickel and zinc concentrates, and Ga, Ge, Se, Cd, In, La and Tl in copper concentrate. The recoveries of these elements ranged from 85.5% to 116.6%. The HCl-HNO3 (3:1) system was more suitable for detecting Te in copper concentrate. CONCLUSIONS The method is simple, and the simultaneous determination of multiple elements is realized. Other factors of the method are the same, the acid digestion system is the key to selection.http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.201805300066nickel concentratecopper concentratezinc concentraterare and dispersed elementsacid dissolutionaqua regiamicrowave digestioninductively coupled plasma-mass spectrometry |
| spellingShingle | SHI Jin-min FENG Ting-jian FU Peng-fei TANG Yong-wu CHEN Da-lin ZHANG Chun-xiang YAN Na Determination of Dispersed Elements in Metal Sulfide Ores by Inductively Coupled Plasma-Mass Spectrometry Using Microwave Digestion Yankuang ceshi nickel concentrate copper concentrate zinc concentrate rare and dispersed elements acid dissolution aqua regia microwave digestion inductively coupled plasma-mass spectrometry |
| title | Determination of Dispersed Elements in Metal Sulfide Ores by Inductively Coupled Plasma-Mass Spectrometry Using Microwave Digestion |
| title_full | Determination of Dispersed Elements in Metal Sulfide Ores by Inductively Coupled Plasma-Mass Spectrometry Using Microwave Digestion |
| title_fullStr | Determination of Dispersed Elements in Metal Sulfide Ores by Inductively Coupled Plasma-Mass Spectrometry Using Microwave Digestion |
| title_full_unstemmed | Determination of Dispersed Elements in Metal Sulfide Ores by Inductively Coupled Plasma-Mass Spectrometry Using Microwave Digestion |
| title_short | Determination of Dispersed Elements in Metal Sulfide Ores by Inductively Coupled Plasma-Mass Spectrometry Using Microwave Digestion |
| title_sort | determination of dispersed elements in metal sulfide ores by inductively coupled plasma mass spectrometry using microwave digestion |
| topic | nickel concentrate copper concentrate zinc concentrate rare and dispersed elements acid dissolution aqua regia microwave digestion inductively coupled plasma-mass spectrometry |
| url | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.201805300066 |
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