Chemists have manufactured a sheet that changes color in the presence of water contaminated with mercury. The results can be seen with the naked eye but when photographing the membrane with a mobile phone the concentration of this extremely toxic metal can be quantified.
URL: http://feeds.sciencedaily.com/~r/sciencedaily/earth_climate/recycling_and_waste/~3/0lN6AAZZK7U/130206111027.htm
No comments:
Post a Comment