Objective To establish the method for determination of beryllium in whole blood with graphite furnace atomic absorbance spectrometry.
Methods After the protein in whole blood was removed by nitric acid 5% (v/v) and centrifugal separation, it was determined by standard working curve using Mg (NO3)2 0.5% (m/v) as matrix modifier.
Results The linearity range of the method was 0.18-5.00 μg/L, the correlation coefficient (r) was 0.999 6, the relative standard deviation (RSD) was 2.7%-4.2%, the detection limit was 0.27 μg/L, and the recovery was 90%-100%.
Conclusion This method is characterized by less amount of samples, simple digestion, better degree of precision and accuracy. It is fit to determine beryllium in whole blood.
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