Abstract：The step-by-step acid dissolution method was adopted. The sample was firstly dissolved with H2SO4-HClO4-HF; then, HNO3 was used as redissolution acid; finally, HCl(1+3) was used as medium acid. Fe 259.94 nm was selected as the analytical line. The content of total iron in uranium ore was determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). When the mass concentration of iron was in range of 14-224 μg/mL, the linear correlation coefficient of calibration curve was r=0.999 9. The detection limit of total iron was 1.25×10-4%. The proposed method was applied to the determination of total iron in six national certified reference materials of uranium ore, including GBW04117-GBW04122. The relative standard deviations (RSD, n=20) were between 1.2% and 3.6%, and the found results were consistent with the certified values. The content of total iron in ten actual uranium ore samples was also determined according to the experimental method, and the found results were consistent with those obtained by EJ/T 297.3-1987. The total iron in certified reference materials was determined according to the experimental method and EJ/T 297.3-1987. The determination results of two methods were compared. The F test and t rest indicated that the proposed method and EJ/T 297.3-1987 had no significant difference.
王 斌,李 强. 电感耦合等离子体原子发射光谱法测定铀矿石中全铁[J]. 冶金分析, 2016, 36(4): 66-70.
WANG Bin,LI Qiang. Determination of total iron in uranium ore by inductively coupled plasma atomic emission spectrometry. , 2016, 36(4): 66-70.
陆娜萍,年季强,朱春要,等.微波消解-邻二氮菲分光光度法测定高炉渣中的全铁[J].光谱实验室,2012,29(5):3042-3046.LU Na-ping,NIAN JI-qiang,ZHU Chun-yao,et al.Derermination of total iron in blast furnace slag by orthophenanthroline spectrophotometry with microwave digestion[J].Chinese Journal of Spectroscopy Laboratory,2012,29(5):3042-3046.
[2]
廖海平,应海松,付冉冉.电位滴定法测定铁矿石中全铁的微波溶样法[J].冶金分析,2007,27(11):54-58.LIAO Hai-ping,YING Hai-song,FU Ran-ran.Microwave digestion of iron ore samples for determination of total iron by potentiometric titration[J].Metallurgical Analysis,2007,27(11):54-58.
[3]
孙丽君,吕宪俊,陈平,等.某褐铁矿石全铁含量的测定[J].金属矿山,2010(9):77-78.SUN Li-jin,L Xian-jun,CHEN Ping,et al.Detemination of total iron content for a limonite sample[J].Metal Mine,2010(9):77-78.
[4]
孙国英.矿石中铁的无汞测定[J].分析试验室,1986,5(3):59-60.SUN Guo-ying.Mercury-free determination of iron in ore[J].Chinese Journal of Analysis Laboratory,1986,5(3):59-60.
[5]
胡跃波,陈靳俊,岳宇超.碱熔-硼氢化钾还原重铬酸钾滴定法测定铁矿石中全铁[J].冶金分析,2015,35(5):77-80.HU Yue-bo,CHEN Jin-jun,YUE Yu-chao.Determination of total iron in iron ore by potassium borohydridereduction-potassium dichromate titration with sample preparation by alkali fusion[J].Metallurgical Analysis,2015,35(5):77-80.
[6]
陈建亚.铁矿石中全铁含量的测定-EDTA滴定法[J].福建分析测试,2004,13(1):1916-1917.CHEN Jian-ya.Determination of full content of iron in iron ore-EDTA titration[J].Fujian Analysis & Testing,2004,13(1):1916-1917.
[7]
赵雷,邱会东.铁矿石中全铁分析方法研究现状[J].重庆科技学院学报:自然科学版,2010,12(3):83-85.ZHAO Lei,QIU Hui-dong.Research status of the total iron analysis method in iron ores[J].Journal of Chongqing University of Science and Technology:Natural Science Edition,2010,12(3):83-85.
[8]
闵红,任丽萍,秦晔琼,等.铁矿石中全铁含量分析的研究进展[J].冶金分析,2014,34(4):21-26.MIN Hong,REN Li-ping,QIN Ye-qiong,et al.Research progress of total iron analysis in iron ore[J].Metallurgical Analysis,2014,34(4):21-26.
[9]
赵雷,邱会东,原金海.微波消解-原子吸收光谱法测定岩芯中的8种金属元素[J].岩矿测试,2011,30(4):461-464.ZHAO Lei,QIU Hui-dong,YUAN Jin-hai. Determination of metal elements in drill cores by microwave digestion-atomic absorption spectrometry[J].Rock and Mineral Analysis,2011,30(4):561-564.
[10]
郑新灵,闫永胜,周丰群,等.原子吸收光度法测定矿石中的铁[J].分析试验室,1999,18(3):96-97.ZHENG Xin-ling,YAN Yong-sheng,ZHOU Feng-qun,et al.Study of determination of iron in ore by atomic absorption spectrophotometry[J].Analytical Laboratory,1999,18(3):96-97.
[11]
刘国军,陈忠厚,刘娟.X-射线荧光光谱法测定硅石中硅铝铁钙钛[J].有色矿冶,2012,28(6):56-58,48.LIU Guo-jun,CHEN Zhong-hou,LIU Juan.The determination of Si,Al,Fe,Ca,Ti in silica by X-ray fluorescence spectrometry[J].Non-Ferrous Mining and Metallurgy,2012,28(6):56-58,48.
[12]
仵利萍,刘卫.熔融制样-X射线荧光光谱法测定重晶石中主次量元素[J].岩矿测试,2011,30(2):217-221.WU Li-ping,LIU Wei.Determination of major and minor elements in barite ores by X-ray fluorescence spectrometry with fusion sample preparation[J].Rock and Mineral Analysis,2011,30(2):217-221.
[13]
马生凤,温宏利,马新荣,等.四酸溶样-电感耦合等离子体原子发射光谱法测定铁、铜、 锌、 铅等硫化物矿石中22 个元素[J].矿物岩石地球化学通报,2011,30(1):65-72.MA Sheng-feng,WEN Hong-li,MA Xin-rong,et al.Determination of 22 elements in iron,copper,zinc,and lead sulphide ores by ICP-AES with four acids digestion[J].Bulletin of Mineralogy Petrology and Geochemistry,2011,30(1):65-72.
[14]
张艳,吴峥,张飞鸽,等.电感耦合等离子体原子发射光谱法测定锰矿石中的主次量元素[J].中国无机分析化学,2014,4(1):41-45.ZHANG Yan,WU Zheng,ZHANG Fei-ge,et al.Determination of primary and secondary elements in manganese ore by inductively coupled plasma emission spectrometry[J].Chinese Journal of Inorganic Analytical Chemistry,2014,4(1):41-45.
[15]
李清昌,王薇,刘阁.ICP-AES法连续测定土壤样品中的铜、铅、锌、铁、锰[J].有色矿冶,2012,28(2):56-57,59.LI Qing-chang,WANG Wei,LIU Ge.Sequential determination of Cu,Pb,Zn,Fe and Mn in soil sample by ICP-AES[J].Non-Ferrous Mining and Metallurgy,2012,28(2):56-57,59.
[16]
温宏利,马生凤,马新荣,等.王水溶样-电感耦合等离子体发射光谱法同时测定铁铜铅锌硫化物矿石中8个元素[J].岩矿测试,2011,30(5):566-571.WEN Hong-li,MA Sheng-feng,MA Xin-rong,et al.Simultaneous determination of 8 elemental components of Fe,Cu,Zn,and Pb in sulfide ores by ICP-AES with aqua regia digestion[J].Rock and Mineral Analysis,2011,30(5):566-571.
[17]
赵雪蓉,仇薪越,赵彤彤,等.电感耦合等离子体原子发射光谱法测定铬矿石中的硅、铝、镁、铁[J].理化检测:化学分册,2012,48(4):427-429.ZHAO Xue-rong,QIU Xin-yue,ZHAO Tong-tong,et al.ICP-AES determination of silicon,aluminum,magnesium and iron in chromium ore[J].Physical Testing and Chemical Analysis Part B:Chemical Analysis,2012,48(4):427-429.
[18]
黄光明,薛蒙伟,韩鹏飞,等.密闭消解ICP-AES测定钨矿石和钼矿石中的9种组分[J].光谱实验室,2013,30(2):956-962.HUANG Guang-ming,XUE Meng-wei,HAN Peng-fei,et al.Determination 9 elements in tungsten ores and molybdenum ores by ICP-AES after pressurizing decomposition[J].Chinese Journal of Spectroscopy Laboratory,2013,30(2):956-962.
[19]
王龙山,郝辉,王光照,等.偏硼酸锂熔矿-超声提取-电感耦合等离子体发射光谱法测定岩石水系沉积物土壤样品中硅铝铁等10种元素[J].岩矿测试,2008,27(4):287-290.WANG Long-shan,HAO Hui,WANG Guang-zhao,et al.Determinantion of 10 elements including silicon,iron and aluminum in rock,stream sediment and soil by ICP-AES with lithium metaborate fusion and ultrasonic extraction[J].Rock and Mineral Analysis,2008,27(4):287-290.
