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|Culture & Science - Ecology and Environment|
|Thursday, 09 June 2011 00:21|
The pollution of water is one of the most serious environmental problems, and with more dangerous consequences for human health. Therefore, the presence of contaminants in water is very important. Thanks to research by the University of Granada, has developed a rapid and inexpensive method for detecting a particular type of pollutant called TEXSA.
The TEXSA (acronym for: toluene, and xylenes etilebenceno) are chemicals that belong to the aromatic compounds. Its use is widespread industrial feedstocks, solvents and petroleum products. The TEXSA are highly toxic and have low biodegradability, which they have become a widespread contaminant. When present in water can cause very harmful effects on health, particularly affecting the liver, kidneys, lungs, heart and nervous system, causing cancer and neurological diseases.
To facilitate the detection of these pollutants have developed a chemical sensor that indicates the presence in water of TEXSA. This technology is achieved using the MIP (molecularly imprinted polymers, or molecularly imprinted polymer). These molecules act as a mold that has the ability to trap the compounds of the family of TEXSA. Using its intrinsic fluorescence is obtained an optical sensor using a screening test indicates whether the contamination exceeds the legal limit.