The Fast and Sensitive System for Determination of Blood Lead Based on the Integrated Film Electrodes Without Removal of Oxygen

Abstract

A novel fast system based on the integrated film electrodes was created. The resulting system was successfully applied in the detection of blood lead, by means of differential pulse anodic stripping voltammetry in tiny amount of volume, ∼50 µl, codeposited with Hg without removal of oxygen. Under the optimum conditions, the peak current was linear to Pb²⁺ concentration from 1.2 to 70 µg/dl, and detection limit was 1.2 µg/dl. Blood lead was detected with calibration curve, y=9.726E− 8+9.959E−8 x (R=0.998). Compared with other methods reported, this method was more rapid, low‐cost, and could meet the requirement of real‐time analysis.

Keywords:

• Blood lead
• integrated film electrode
• evaporation
• sensitive
• fast
• without removal of oxygen

Acknowledgments

The authors are grateful for the funding provided by the National Natural Science Foundation of China (No. 20335040, 90606014, 20605005, 20525519).