Determination of titanium, vanadium and strontium inmanganese ore by inductively coupled plasma mass spectrometry with high-pressure closed digestion
ZHANG Ge1, LIU Ye-nan2,DUAN Ning1, JIANG Lin-hua*1,QIU Yin-xuan3, ZHOU Chao1, WEN Yu-cheng1, WANG Li-ying4
1.Chinese Research Academy of Environmental Sciences Technology Center for Heavy Metal Cleaner Production Engineerings, Beijing 100012, China; 2. North China University of Techology Academy of Art Design, Beijing 100041, China; 3. General Research Institute for Nonferrous Metals Bioleaching National Engineering Laboratory,Beijing 100088, China; 4.Beijing Organic and Beyond Corporation,Beijing 100027, China
Abstract：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 (ICP-AES). 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%.
Song Y H, Choi M S. REE geochemistry of fine-grained sediments from major rivers around the Yellow Sea[J]. Chemical Geology, 2009, 266: 328-342.
[17]
Singh P. Major,trace and REE geochemistry of the Ganga River sediments:Influence of provenance and sedimentary processes [J]. Chemical Geology, 2009, 266: 242-255.
