TY - JOUR
T1 - Reversible optical sensor for in situ determination of heavy metal impurities in the environment
AU - Reisfeld, Renata
AU - Shamrakov, Dimitry
PY - 1996
Y1 - 1996
N2 - The method developed for reversible determination of cadmium ions is based on the incorporation of 8-hydroxyquinoline-5-sulfonic acid into silica films prepared by the sol-gel method. When exposed to a solution containing cadmium ions, a colored complex is formed. The concentration of the colored complex is determined from its characteristic absorption in the visible region using a special apparatus. The detection limit is of sub ppm order. This method can be used for the determination of various heavy metal ions.
AB - The method developed for reversible determination of cadmium ions is based on the incorporation of 8-hydroxyquinoline-5-sulfonic acid into silica films prepared by the sol-gel method. When exposed to a solution containing cadmium ions, a colored complex is formed. The concentration of the colored complex is determined from its characteristic absorption in the visible region using a special apparatus. The detection limit is of sub ppm order. This method can be used for the determination of various heavy metal ions.
KW - In situ determination of cadmium
KW - Reversible optical sensor
KW - Sol-gel optical sensor
UR - http://www.scopus.com/inward/record.url?scp=1542390850&partnerID=8YFLogxK
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AN - SCOPUS:1542390850
SN - 0914-4935
VL - 8
SP - 439
EP - 443
JO - Sensors and Materials
JF - Sensors and Materials
IS - 7
ER -