Author(s): LI Yng, LI Wei-qun, WANG Ling-an, Laboratory, Changchun Center for Disease Control and Prevention
Pages: 416-417
Year: 2014 Issue:  5
Journal: Chinese Journal of Public Health Engineering
Keyword:  Atomic fluorescence spectrometry; Microwave digestion; Biological materials; Determination of total mercury;
Abstract: Objective To establish a method for measuring total mercury in biological materials with double channel atomic fluorescence spectrometer of type PF6-2.Methods Mercury in the sample was measured with atomic fluorescence spectrometry after wet digestion or microwave digestion processes.Results The detection limit was 0.11 ng /ml with a good linear relationship between 0-10 mg /ml,the correlation coefficient was 0.999 7.There was no significant difference( P >0.05) in results of the determination between this method and the current method for measuring mercury.The precision of microwave digestion was better.The recovery of standard addition was 91.0%-104.0%.Conclusion The speed of analysis of atomic fluorescence spectrometry is fast,accuracy and high precision,and it is a good method for the determination of total mercury in biological materials.