Determination of eight components in soil by inductively coupled plasma atomic emission spectrometry
YUAN Run-lei1, YU Ya-hui1, LIU Jun1, WANG Lin*1, CHEN Hao-feng1, HAN Zhi-xuan2
1. Henan Province Rock & Mineral Testing Centre, Key Laboratory of Precious Metals Analysis and Exploration Technology Ministry of Land and Resources, Zhengzhou 450012, China; 2. Key Laboratory of Geochemical Exploration, MLR, Institute of Geophysical and Geochemical Exploration, CAGS, Langfang 065000, China
Abstract：In order to meet the requirements of land quality investigation, to realize the simultaneous digestion and accurate determination of multi-components in soil, and to improve the analytical efficiency of large quantities of samples, a method for simultaneous determination of K2O, Na2O, CaO, MgO, Ba, Mn, Cu and Zn in soil sample by inductively coupled plasma atomic emission spectrometry (ICP-AES) after high-pressure digestion in closed system was established in this study. The digestion system, the acid dosage and the digestion temperature were investigated to obtain the optimum experimental conditions. The interference of the coexisting elements in testing solution including Al and Fe was discussed. The results showed that both two elements had no interference with the determination. The linear correlation coefficients of calibration curves of elements were all greater than 0.999. The detection limits of method were between 0.01μg/g and 10μg/g. The proposed method was applied for the determination of K2O, Na2O, CaO, MgO, Ba, Mn, Cu and Zn in certified reference materials of soil (GBW07385, GBW07386 and GBW07388). The relative standard deviations (RSD, n=12) of results were between 1.1% and 4.3%, and the relative errors (RE) were between -4.0% and 4.6%. The contents of K2O, Na2O, CaO, MgO, Ba, Mn, Cu and Zn in actual soil sample were determined according to the experimental method, and the RSD (n=6) were between 1.2% and 4.6%. The measured results were compared and consistent with those obtained by standard method of mineral industry (DZ/T0279.2-2016).
刘文甫,应腾远,王丽,等.电感耦合等离子体原子发射光谱法测定铁酸钙中氧化铝、氧化镁和磷[J].冶金分析,2014,34(4):70-73.LIU Wen-fu,YING Teng-yuan,WANG Li,et al.Determination of aluminum oxide, magnesium oxide and phosphorus in calcium ferrite by inductively coupled plasma atomic emission spectrometry[J].Metallurgical Analysis,2014,34(4):70-73.
[2]
黄卫,谢意南,彭娴,等.ICP-OES标准加入法同时测定土壤中7种金属元素[J].环境与发展,2014,26(4):172-175.HUANG Wei,XIE Yi-nan,PENG Xian,et al.Simultaneously determinate 7 kind of metal elements in soil by ICP-OES-standard addition method[J].Environment and Development,2014,26(4):172-175.
[3]
刘峰,秦樊鑫,胡继伟,等.不同混合酸消解样品对电感耦合等离子体原子发射光谱法测定土壤中重金属含量的影响[J].理化检验:化学分册,2011,47(8):951-954.LIU Feng,QIN Fan-xin,HU Ji-wei,et al.Effects of different acid mixtures for sample digestion on the ICP-AES determination of heavy metal elements in soil[J].Physical Testing and Chemical Analysis Part B:Chemical Analysis,2011,47(8):951-954.
苏海芳,戴森,翟永恒,等.微波消解-ICP-OES测定土壤中重金属元素[J].中国资源综合利用,2018,36(1):29-31.SU Hai-fang,DAI Sen,ZHAI Yong-heng,et al.Determination of heavy metal elements in soil by microwave digestion-ICP-OES[J].China Resources Comprehensive Utilization,2018,36(1):29-31.
[6]
孙晓慧,李章,刘希良,等.微波消解-电感耦合等离子体原子发射光谱法测定土壤和水系沉积物中15种组分[J].冶金分析,2014,34(11):56-60.SUN Xiao-hui,LI Zhang,LIU Xi-liang,et al.Determination of fifteen components in soil and stream sediment byinductively coupled plasma atomic emission spectrometry after microwave digestion[J].Metallurgical Analysis,2014,34(11):56-60.
[7]
成勇,袁金红,彭慧仙,等.微波消解-电感耦合等离子体原子发射光谱法测定钒钛磁铁矿中锆铌钒铬[J].冶金分析,2013,33(12):43-46.CHENG Yong,YUAN Jin-hong,PENG Hui-xian,et al.Determination of zirconium, niobium, vanadium and chromium in vanadium titano-magnetite ore by microwave digestion inductively coupled plasma atomic emission spectrometry[J].Metallurgical Analysis,2013,33(12):43-46.
[8]
肖凡,张宁,姜云军,等.密闭酸溶-电感耦合等离子体原子发射光谱法测定地球化学调查样品中硼[J].冶金分析,2018,38(6):50-54.XIAO Fan,ZHANG Ning,JIANG Yun-jun,et al.Determination of boron in geochemical survey sample by inductively coupled plasma atomic emission spectrometry after acid dissolution in closed system[J].Metallurgical Analysis,2018,38(6):50-54.
[9]
张歌,刘叶楠,段宁,等.高压密闭消解-电感耦合等离子体质谱法测定锰矿石中钛钒锶[J].冶金分析,2014,34(12):39-43.ZHANG Ge,LIU Ye-nan,DUAN Ning,et al.Determination of titanium, vanadium and strontium inmanganese ore by inductively coupled plasma mass spectrometry with high-pressure closed digestion[J].Metallurgical Analysis,2014,34(12):39-43.
谭雪英.电感耦合等离子体发射光谱法同时测定碳酸盐岩石中19个元素[J].岩矿测试,1999,18(4):275-279.TAN Xue-ying.Simultaneous determination of 19 elements in carbonate rocks by ICP-AES[J].Rock and Mineral Analysis,1999,18(4):275-279.
[12]
刘芳,黄瑞成,戴伟峰,等.巯基棉分离富集ICP-OES测定岩盐矿中的水溶性铜铅锌镉[J].岩矿测试,2017,36(3):252-257.LIU Fang,HUANG Rui-cheng,DAI Wei-feng,et al.Determination of water-soluble Cu,Pb,Zn,Cd in rock salt by ICP-OES with sulfhydryl cotton separation and preconcentration[J].Rock and Mineral Analysis,2017,36(3):252-257.
