Nanyang Technological University (NTU) scientists have invented a portable device that can detect trace levels of heavy metal contaminants in drinking water in just five minutes.
Drinking water quality is typically monitored using highly accurate laboratory tests that take at least a day to complete, NTU said in a media release on Monday (Apr 15). Lab tests are necessary as heavy metals cannot be identified by colour, taste or odour unless present at high levels.
NTU's device, however, uses an organic substance found in the human bloodstream called a chelating agent, which detects and binds to heavy metal ions and marks them for excretion from the body.
He added that the device can detect up to 24 types of metal contaminants, double the capacity of other commercially available water sensors.
Read more @ https://www.channelnewsasia.com/news/singapore/ntu-portable-device-water-quality-heavy-metal-contamination-11446378