2010•Chinese Journal of Health Laboratory TechnologyRequires access
Determination of nickel in urine by graphite furnaceatomic absorption spectrometry
Qi Geng
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Abstract
Objective:To develop an analytical method for rapid determination of nickel in urine by graphite furnace atomic absorption spectrometry.Methods:The urine was acidified with nitric acid,and then PdCl2 was added as matrix modifier to improve peak shape and sensitivity and finally the nicle in sample solution was determined by pyrolysis-platform graphite furnace atomic absorption spectrometry.Results:The method had a linear range in 0～10.0 μg/L,and the regression coefficient was 0.9986.The detection limit of the method was 0.12 μg/L and recoveries ranged from 91.3%～105.3%.Conclusion:This method is simple and practical,which has a higher sensitivity,accuracy and good stability and it is suitable for determination of nickel in urine.