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  

Determination of titanium,vanadium and strontium in manganese ore by inductively coupled plasma mass spectrometry with high-pressure closed digestion

作　　者：张歌[1] 刘叶楠[2] 段宁[1] 降林华[1] 邱胤轩 周超[1] 文玉成[1] 王丽英 

机构地区：[1]中国环境科学研究院重金属清洁生产工程技术中心,北京100012 [2]北方工业大学艺术学院,北京100041 [3]北京有色金属研究总院生物冶金国家工程实验室,北京100088 [4]正谷(北京)农业发展有限公司,北京100027

出　　处：《冶金分析》2014年第12期39-43,共5页Metallurgical Analysis

基　　金：国家水体污染控制与治理科技重大专项(2010ZX07212-006)

摘　　要：采用高压密闭消解系统,以6 mL HNO3-1 mL HF-3 mLHCl酸体系消解锰矿石,建立了电感耦合等离子体质谱法（ICP-MS）测定锰矿石中钛、钒、锶3种金属元素的方法.选择^48Ti、^51V和^88Sr为待测同位素,以钪（45 Sc）和铟（115 In）为内标校正了基体效应与信号漂移.钛、钒和锶校准曲线的线性相关系数均为0.999 9,检出限分别为0.12、0.003 0和0.014 ng/mL.将方法用于锰矿石实际样品分析,结果与电感耦合等离子体原子发射光谱法（ICP-AES）基本一致,相对标准偏差（RSD,n=11）不大于2.0％,加标回收率在99％～102％之间.After the sample was decomposed with 6 mL of HNO3,1 mL of HF and 3 mL of HCl in high-pressure closed vessel digestion system,titanium,vanadium and strontium in manganese ore was determined by inductively coupled plasma mass spectrometry （ICP-MS）.^48Ti,^51V and ^88Sr were selected as test isotopes.The matrix effect and signal drift were corrected with 45Sc and 115In as internal standard.The linear correlation coefficients of calibration curve were all 0.999 9 for titanium,vanadium and strontium,and the detection limit was 0.12,0.003 0 and 0.014 ng/mL,respectively.The proposed method was applied to the determination of manganese ore actual samples.The results were consistent with those obtained by inductively coupled plasma atomic emission spectrometry （ICPAES）.The relative standard deviation （RSD,n=11） was equal to or less than 2.0%.The recoveries of standard addition were between 99% and 102%.

关 键 词：高压密闭消解 电感耦合等离子体质谱法 锰矿 钛 钒 锶 

分 类 号：O657.63[理学—分析化学] P575[理学—化学]