| 电感耦合等离子体发射光谱法测定铝土矿中镓——酸溶和碱熔预处理方法比较 |
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| 引用本文： | 文加波,商丹,宋婉虹,彭国萍.电感耦合等离子体发射光谱法测定铝土矿中镓——酸溶和碱熔预处理方法比较[J].岩矿测试,2011,30(4):481-485. |
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| 作者姓名： | 文加波 商丹 宋婉虹 彭国萍 |
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| 作者单位： | 1. 贵州省地质矿产勘查开发局一○六地质大队,贵州遵义,563000
2. 上海大学材料科学与工程学院,上海,200072 |
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| 基金项目： | 贵州省地质勘查基金(周转金)矿产项目 |
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| 摘 要： | 研究了盐酸-硝酸-氢氟酸-高氯酸酸溶和氢氧化钠碱熔两种测定铝土矿石样品中镓的前处理方法,利用电感耦合等离子体发射光谱法(ICP-AES)进行测定。对熔矿试剂及条件、分析谱线的选择和元素的干扰进行了讨论,采用不同含量的铝土矿石国家标准物质样品进行了条件实验。分析结果表明:采用盐酸-硝酸-氢氟酸-高氯酸溶解样品,会导致铝土矿石样品溶解不完全,得到的数据失真;而采用氢氧化钠碱熔法处理铝土矿石样品后,用ICP-AES法测定,镓的测定值准确度高,方法检出限为0.15μg/g,相对标准偏差(RSD,n=11)为2.51%～5.97%,回收率为94.8%～108.2%。该方法灵敏度高,精密度好,分析时间短,易于流程操作。方法经国家一级标准物质分析验证,测定结果与标准值相符,特别适用于铝土矿石样品中镓的测定。
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| 关 键 词： | 镓 铝土矿 电感耦合等离子体发射光谱法 酸溶 氢氧化钠碱熔 |
| 收稿时间： | 2010/8/21 0:00:00 |
| 修稿时间： | 2010/12/20 0:00:00 |
Quantification of Gallium in Bauxites by Inductively Coupled Plasma-Atomic Emission Spectrometry-Comparison of Sample Pretreatment Methods between Alkali Fusion and Acid Dissolution |
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| WEN Jia-bo,SHANG Dan,SONG Wan-hong and PENG Guo-ping.Quantification of Gallium in Bauxites by Inductively Coupled Plasma-Atomic Emission Spectrometry-Comparison of Sample Pretreatment Methods between Alkali Fusion and Acid Dissolution[J].Rock and Mineral Analysis,2011,30(4):481-485. |
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| Authors: | WEN Jia-bo SHANG Dan SONG Wan-hong and PENG Guo-ping |
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| Institution: | WEN Jia-bo1,SHANG Dan2,SONG Wan-hong1,PENG Guo-ping1 (1.106 Geological Party,Guizhou Bureau of Geology and Mineral Exploration& Development,Zunyi 563000,China,2.School of Materials Science and Engineering,Shanghai University,Shanghai 200072,China) |
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| Abstract: | Two different sample pretreatment methods-NaOH alkali fusion method and HCl-HNO3-HF-HClO4 acid dissolution method were compared in order to quantify Ga in bauxite ore samples by inductively coupled plasma-atomic emission spectrometry(ICP-AES).The loaded reagents,chemical procedure,selection of analysis spectral lines and interferences are discussed in this paper.National Standard Reference bauxite ore samples with different Ga contents were analyzed by using both sample pretreatment methods.The analytical r... |
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| Keywords: | gallium bauxite ore inductively coupled plasma-atomic emission spectrometry acid dissolution sodium hydroxide alkali fusion |
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