Detecting 41 mineral elements in human whole blood by inductively coupled plasma-mass spectrometry / 中国职业医学

ABSTRACT

OBJECTIVE: To establish a method for detecting 41 mineral elements such as beryllium, magnesium and calcium in whole blood by inductively coupled plasma-mass spectrometry(ICP-MS). METHODS: After the whole blood samples were diluted 1∶20 in a mixed solution containing 0.10% Triton X-100 and 0.50% nitric acid, 41 mineral elements in whole blood samples such as beryllium, magnesium and calcium were determined by the ICP-MS, using scandium, rhodium and iridium as the internal standard elements. RESULTS: The linear correlation coefficient was >0.999 0 in these 41 elements such as beryllium, magnesium and calcium in the whole blood. The detection limit was 0.006-247.000 μg/L, the quantification lower limit was 0.020-822.000 μg/L. The recovery rate of standard addition was 84.00%-109.40%. The within-run and between-run relative standard deviation were 0.66%-7.34% and 0.56%-8.22%, respectively. The samples could be stored at-20 ℃ for at least 14 days. CONCLUSION: This method is simple, rapid and sensitive, with good precision and reliable results. It can be used for detecting multiple mineral elements in whole blood of normal and occupational population.