[Comparison between anodic stripping voltammetry and graphite furnace atomic absorption spectrophotometry for blood lead analysis].
OBJECTIVE
To compare and evaluate anodic striping voltammetry (ASV) with graphite furnace atomic absorption spectrophotometry (GFAAS) for blood lead analysis.


METHODS
These two methods were used to analyze same samples of three kinds of blood (cattle blood, rat blood & human blood) at the same time. The practicability and reliability of the results were evaluated by the statistic analysis.


RESULTS
Limits of detection (LOD) for ASV and GFAAS were 5.3 microg/L and 0.045 microg/L. Limits of quality (LOQ) were 17.8 microg/L and 0.15 microg/L for ASV and GFAAS. The results that three kinds of blood samples were analyzed by these two methods were in high correlation after t test (P > 0.05).


CONCLUSIONS
The data demonstrated that the ASV method could be in the complete conformity to GFAAS for different kinds of blood samples in lead analysis. The results showed that the sensibility of GFAAS was better than that of ASV, but the ASV showed a marked performance in stability, ease of operation and precision as well as GFAAS. GFAAS was suitable for the scientific research as ASV for a clinic.
Li
Xiaowei
X
Institute for Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
Gao
Junquan
J
D000818:Animals; D002138:Calibration; D002417:Cattle; D002623:Chemistry Techniques, Analytical / Q000379:methods; D002648:Child; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D004781:Environmental Exposure; D005260:Female; D006108:Graphite; D006801:Humans; D007854:Lead / Q000097:blood*; D008297:Male; D051381:Rats; D013054:Spectrophotometry, Atomic / Q000379:methods*
D007854:Lead; D006108:Graphite