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A Drinking Water Sensor for Lead and Other Heavy Metals
- Source :
- Analytical Chemistry. 89:8748-8756
- Publication Year :
- 2017
- Publisher :
- American Chemical Society (ACS), 2017.
-
Abstract
- Leakage of lead and other heavy metals into drinking water is a significant health risk and one that is not easily detected. We have developed simple sensors containing only platinum electrodes for the detection of heavy metal contamination in drinking water. The two-electrode sensor can identify the existence of a variety of heavy metals in drinking water, and the four-electrode sensor can distinguish lead from other heavy metals in solution. No false-positive response is generated when the sensors are placed in simulated and actual tap water contaminated by heavy metals. Lead detection on the four-electrode sensor is not affected by the presence of common ions in tap water. Experimental results suggest the sensors can be embedded in water service lines for long-time use until lead or other heavy metals are detected. With its low cost (∼$0.10/sensor) and the possibility of long-term operation, the sensors are ideal for heavy metal detection of drinking water.
- Subjects :
- Metal contamination
Chemistry
Drinking Water
Heavy metals
Electrochemical Techniques
02 engineering and technology
Contamination
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Analytical Chemistry
Metal
Lead
Tap water
visual_art
Environmental chemistry
Electric Impedance
visual_art.visual_art_medium
Health risk
0210 nano-technology
Electrodes
Water Pollutants, Chemical
Platinum
Subjects
Details
- ISSN :
- 15206882 and 00032700
- Volume :
- 89
- Database :
- OpenAIRE
- Journal :
- Analytical Chemistry
- Accession number :
- edsair.doi.dedup.....a78ae274a16d49c6587eda9cb4d3dee3