Abstract
Determination of total dissolved iron (Fe) is of great significance for further studying its role in the biochemical cycle of the earth. Herein, a defective carbon black material (BPdefect) was adopted to replace metal-based composites for determination of Fe dissolved in solution via electroanalysis on modified electrode. The effects of solid loading and electrolyte on electrochemical performance were studied. The measurement accuracy of BPdefect-modified electrode was validated by determining Fe(III) standard reference materials. The BPdefect-modified electrode was also applied in Fe analysis in groundwater samples successfully.
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