Determination of 14 Metal Elements in Manganese Carbonate Ore by High-pressure Closed Digestion-Inductively Coupled Plasma-Mass Spectrometry

In HNO3-HCl-HF system by high-pressure closed digestion-inductively coupled plasma-mass spectrometry(ICP-MS),14 metal elements(Ba,V,Co,Pb,Cr,Zn,Cu,Ni,U,Mo,Sb,W,Cd,Sc)in manganese carbonate ore samples were determined.The internal standard elements indium and bismuth were used to compensate for matrix suppression effect and sensitivity drift.Meanwhile,the national standard reference materials were determined and analyzed to verify the accuracy of this method.The results show that this method has a strong anti-interference performance(correlation coefficient is greater than 0.999 9)and high precision and accuracy(the recovery of standard addition is 90.00%-105.65%),and can meet the requirements to analyze the metal elements in large amount of manganese carbonate ore samples.