火焰原子吸收光谱法测定红土镍矿中的铅

王慧; 刘烽; 许玉宇; 俞璐; 吴骋; 王国新

火焰原子吸收光谱法测定红土镍矿中的铅

1.
常熟出入境检验检疫局, 江苏常熟 215500
2.
常熟出入境检验检疫局, 江苏常熟 215500
3.
常熟出入境检验检疫局, 江苏常熟 215500
4.
常熟出入境检验检疫局, 江苏常熟 215500
5.
常熟出入境检验检疫局, 江苏常熟 215500
6.
常熟出入境检验检疫局, 江苏常熟 215500

基金项目:

红土镍矿化学分析方法系列行业标准项目(有色标秘[2010]86号)

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出版历程
- 收稿日期: 2011-08-07
- 修回日期: 2012-02-27

Determination of Lead in Laterice Nickel Ore by Flame Atomic Absorption Spectrometry

1.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China
2.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China
3.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China
4.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China
5.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China
6.
Changshu Entry-Exit Inspection and Quarantine Bureau, Changshu 215500, China

摘要

摘要: 样品用盐酸-硝酸溶解,氢氟酸挥发硅,高氯酸冒烟除去氢氟酸,然后以稀硝酸溶解可溶性盐类,火焰原子吸收光谱法测定红土镍矿中铅的含量。考察了不同的酸对样品的溶解效果,对介质酸度和共存元素干扰情况进行了实验。结果表明:盐酸-硝酸-氢氟酸-高氯酸可以将样品消解完全;5%以内的硝酸不影响铅的测定;100 mL体积内,100 mg铁、6 mg镍、1 mg铜、5 mg钙、2 mg锰、1 mg铬、1 mg钴、1 mg锌等共存元素对0.1 mg铅的测定不产生干扰。在选定的仪器工作参数下,Pb的检出限为0.044 μg/mL,加标回收率为97%~106%,测定值与电感耦合等离子体发射光谱法结果一致。方法重复性好、准确度高,可满足准确测定红土镍矿中铅含量的分析要求。
- 红土镍矿 /
- 铅 /
- 酸溶 /
- 火焰原子吸收光谱法
Abstract: Laterice nickel ore was digested with mixed acids of HCl and HNO₃mixed acids. HF was used to remove silicon, and residual HF was volatilized by using HClO₄. Lead content in the HNO₃ solution was determined by Flame Atomic Absorption Spectrometry. The different acid digestion systems and interferences of coexistent elements are presented in this paper. The results showed that the samples were completely dissolved by HCl-HNO₃-HF-HClO₄ mixed acids. The Pb level content was not influenced by HNO₃ when its acidity was below 5% (V/V). The coexistent elements of Fe (1000 μg/mL), Ni (60 μg/mL), Cu (10 μg/mL), Ca (50 μg/mL), Mn (20 μg/mL), Cr (10 μg/mL), Co (10 μg/mL) and Zn (10 μg/mL) did not interfere with the Pb result (1 μg/mL). The detection limit was 0.044 μg/mL at selected working conditions. The accuracy of the Pb content was verified by adding a standard solution to the laterice nickel ore. The recoveries ranged from 97% to 106%, and the results of this method were in agreement with inductively coupled plasma atomic emission spectrometry. The proposed method is a useful technique with good repeatability and accuracy.
- laterice /
- nickel /
- ore /
- lead

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参考文献(14)

李艳军,于海臣,王德全,尹文新,白元生.红土镍矿资源现状及加工工艺综述[J].金属矿山,2010,39(11): 5-9.

肖振民.世界红土型镍矿开发和高压酸浸技术应用[J].中国矿业,2002,11(1): 56-59.

李建华,程威.红土镍矿处理工艺综述[J].湿法冶金,2004,23(4): 191-194.

李小明,唐琳,刘仕良.红土镍矿处理工艺探讨[J].铁合金,2007,38(4): 24-28.

李启厚,王娟,刘志宏.世界红土镍矿资源开发及其湿法冶金技术的进展[J].矿产保护与利用,2009,12(6): 42-46.

胡顺峰,姜涛,李海印,周润峰.红土镍矿品质特点及检验方法探讨[J].中国矿业,2008,17(10): 82-85.

苏征.进口红土镍矿的检验现状及误差原因分析[J].有色金属,2010,62(4): 139-142.

胡顺峰,王霞,郭合颜,金伟.电感耦合等离子体发射光谱法测定红土镍矿石中镍铬镁铝钴[J].岩矿测试,2011,30(4): 465-468.

王虹,冯宇新,苏明跃,王晶.火焰原子吸收光谱法测定红土镍矿中铬[J].冶金分析,2007,27(9): 54-56.

何飞顶,李华昌,冯先进.电感耦合等离子体原子发射光谱法(ICP-AES)测定红土镍矿中的Cd、Co、Cu、Mg、Mn、Ni、Pb、Zn、Ca 9种元素[J].中国无机分析化学,2011,27(2): 39-41.

余清,陈贺海,张爱珍,王宝钢.火焰原子吸收光谱法快速测定铁矿石中铅锌铜[J].岩矿测试,2009,28(6): 598-599.

Harahsheh M A, Kingman S, Somerfield C, Ababneh F. Microwave-assisted total digestion of sulphide ores for multi-element analysis[J]. Analytica Chimica Acta, 2009,638: 101-105.

邱德仁.原子光谱分析[M].上海: 复旦大学出版社,2002: 237-284.

邓勃.应用原子吸收与原子荧光光谱分析[M].北京:化学工业出版社,2003: 280-300.

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火焰原子吸收光谱法测定红土镍矿中的铅

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Determination of Lead in Laterice Nickel Ore by Flame Atomic Absorption Spectrometry

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