Objective To verify a direct urine mercury determination method with a standard methodology.
Methods A direct mercury analyzer (DMA80) was compared with a standard cold atomic absorption spectrophotometry in urine mercury determination.
Results The linear range of the DMA80 method was 2.00-40.00 μg/L, the linear equation was & #375;=0.019x+0.006(r=0.999 5), the detection limit was 0.05 ng, the relative standard deviations were 2.2%-8.7% and the recovery rates were 97.5%-102.6%.
Conclusion In determine mercury in the same urine samples by the standard cold atomic absorption spectrophotometry and the direct analyzer, no significant difference is found.The direct analyzer could be applied in routine urine analysis.
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