Determination of Selenium in Coal Ash with Microwave Digestion and Hydride Generation-Atomic Fluorescence Spectrometry

Qiu-li TAO; Zhang-xiong HAN; Ying XIONG; Nai-cang MU; Hong LUO; Xi-jie WANG

2013 Vol. 32, No. 3

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Qiu-li TAO, Zhang-xiong HAN, Ying XIONG, Nai-cang MU, Hong LUO, Xi-jie WANG. Determination of Selenium in Coal Ash with Microwave Digestion and Hydride Generation-Atomic Fluorescence Spectrometry[J]. Rock and Mineral Analysis, 2013, 32(3): 445-448.

Citation:

Determination of Selenium in Coal Ash with Microwave Digestion and Hydride Generation-Atomic Fluorescence Spectrometry

Provincial Key Laboratory of Mineral Exploration and Utilization， Shaanxi Institute of Geology and Mineral Resources Experiment, Xi′an 710054, China

Received Date: 13 December 2012

Accepted Date: 05 February 2013

Abstract

Abstract

Coal ash containing higher than usual selenium has a comprehensive utilization value. Although selenium in coal ash samples has been studied in some areas, there is no formed reliable method to determine the selenium content in coal ash due to the complex matrix. In the paper, referring to the analysis of coal and soil samples, a method to determine selenium in coal ash by Hydride Generation-Atomic Fluorescence Spectrometry (HG-AFS) is described. The samples were first digested by microwave digestion in HF+HNO₃+H₂O₂ without other pretreatment. The obtained clear and transparent digestion solution was reduced by 30％ HCl. The interferences of coexisting elements were eliminated by adding Fe(Ⅲ) salt without interference with Se. The detection limit was 0.020 μg/g. The relative standard deviation was less than 4.2% (n=5). Recoveries of samples were in the range of 94.0%-105.0%. The method has been validated by analysis of standard reference coal fly ash and the analytical results are in agreement with certified values, which indicates that it is a feasible method to detect Se in coal ash.
- coal ash /
- selenium /
- microwave digestion /
- Hydride Generation-Atomic Fluorescence Spectrometry

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References

[1]	武艳菊,刘振学.用粉煤灰生产农用肥[J].中国资源综合利用,2004(10): 17-19. doi: 10.3969/j.issn.1008-9500.2004.10.007 CrossRef Google Scholar
[2]	徐文东,曾荣树,叶大年, Querol X.电厂煤燃烧后元素硒的分布及对环境的贡献[J].环境科学,2005,26(2): 64-68. Google Scholar
[3]	吴家华,刘宝山,董云中.农用粉煤灰中硒控制标准的研究[J].电力环境保护,1988(2): 45-47. Google Scholar
[4]	华明,黄顺生,廖启林,冯金顺,金洋,吴新民,朱佰万,张祥云.粉煤灰堆场附近农田土壤硒环境污染评价[J].土壤,2009,41(6): 880-885. Google Scholar
[5]	李慧.塞曼石墨炉原子吸收法测定生物富硒样品中硒含量[J].现代预防医学,2000,27(2): 268-269. Google Scholar
[6]	冯尚彩,韩长秀.塞曼石墨炉原子吸收法直接测定血清中的硒[J].分析试验室,2002,21(4): 52-53. Google Scholar
[7]	Llorente I, Gomez M, Camara C.Improvement of selenium determination in water by inductively coupled plasma mass spectrometry through use of organic compounds as matrix modifiers [J].Spectrochimica Acta Part B, 1997,52B(12): 1825. Google Scholar
[8]	郭小伟,张文琴,杨密云.氢化物-无色散原子荧光法测定地质样品中微量硒及碲[J].岩矿测试,1983,2(4): 288-292. Google Scholar
[9]	韦山桃,唐沈.氢化物-原子荧光法快速测定化探样品中微量硒和碲[J].矿产与地质,2007,21(5): 601-605. Google Scholar
[10]	倪迎瑞,柯玲,李久川,魏曾.氢化物发生-原子荧光光谱法测定北虫草中总硒和无机硒[J].理化检验:化学分册,2012,48(2): 182-184. Google Scholar
[11]	李晓春,潘金德,毛春国,钱亚红.原子荧光法测定植物样品中的硒[J].广东微量元素科学,2008,15(3): 46-50. Google Scholar
[12]	周姣花,汪建宇,钟莅湘,陈浩风,王玉林.氢化物发生-原子荧光光谱法测定生物样品中的硒[J].岩矿测试, 2011,30(2): 214-216. Google Scholar
[13]	董亚妮,田萍,熊英,胡建平,牟乃仓,雒虹,陶秋丽.焙烧分离-氢化物发生-原子荧光光谱法测定铜铅锌矿石中的硒[J].岩矿测试, 2011,30(2): 164-168. Google Scholar
[14]	梁立娜,何滨,江桂斌.氢化物发生-原子荧光光谱法测定煤样中的硒[J].岩矿测试,2001,20(1): 31-33. Google Scholar
[15]	黄长玉,祝建国,黄兴华,毛振才.氢化物发生-原子荧光光谱法自动进样快速测定烟道灰中硒的应用研究[J].分析测试技术与仪器,2008,14(2): 112-114. Google Scholar
[16]	祝建国,余志峰,黑文龙,柴昌信,刘江斌,毛振才,刘光辉,陈港泉.粉煤灰多元素综合分析测试与应用研究[C]//甘肃省化学会成立六十周年学术报告会暨二十三届年会论文集.兰州:甘肃省化学会,2003:463-464. Google Scholar
[17]	任希棠,白英彬.电感耦合等离子体发射光谱法测定粉煤灰中主量与微量元素[J].地质实验室,1999,15(3): 165-167. Google Scholar
[18]	刘晶,郑楚光,贾小红,徐英杰.微波消解和电感耦合等离子体发射光谱法同时测定煤灰中的14种元素[J].分析化学,2003,31(11): 1360-1363. doi: 10.3321/j.issn:0253-3820.2003.11.019 CrossRef Google Scholar
[19]	石景燕.电感耦合等离子体发射光谱法测定电厂煤灰中常量元素[J].理化检验:化学分册,2007,43(10): 861-862, 865. Google Scholar
[20]	张锦茂,范凡,任萍.氢化物-原子荧光法测定岩石样品中痕量硒的干扰及消除[J].岩矿测试,1993,12(4): 264-267. Google Scholar
[21]	徐宝玲.氢化物-原子荧光法测定硒时元素的干扰及其消除[J].分析化学,1985,13(1): 29-33. Google Scholar