Determination of Mineral Elements in Thermal Mineral Mud from Tanggangzi Hotspring by Inductively Coupled Plasma-Mass Spectrometry

The mineral elements in the thermal mineral mud samples from Tanggangzi hotspring were analyzed.The thermal mineral mud samples were decomposed by microwave digestion and the elements of Na,Mg,K,Ca,Fe,Zn,Mn,Cu,Se,Ge,Mo,Cr,Al,Ni,As,Hg and Pb in the samples were analyzed by inductively coupled plasma-mass spectrometry(ICP-MS).The results showed that under optimum conditions,the detection limits of the method for these elements were in the range of 0.000 279 9～14.66 μg/L.The recovery of the method for these elements was 91.1%～108.2% with precision of 0.18%～6.20%RSD(n=6).The results also indicated that the thermal mineral mud from Tanggangzi hotspring contained abundant of mineral elements.