The Detection of Hexavalent Chromium by Organically Doped Sol-Gels

1994 ◽  
Vol 346 ◽  
Author(s):  
Phillip W. Wong ◽  
John D. Mackenzie
Keyword(s):  
Hexavalent Chromium ◽  
Malachite Green ◽  
Spectrophotometric Determination ◽  
Quantitative Method ◽  
Organic Molecules ◽  
Sol Gel ◽  
Metallic Ions ◽  
Sol Gel Process ◽  
Trace Concentrations

ABSTRACTThe sol-gel process can be used to produce porous inorganic matrices that are doped with organic molecules. These doped gels can be used as a quantitative method for the spectrophotometric determination of trace concentrations of metallic ions. For the detection of hexavalent chromium, malachite green was used as the dopant. Preliminary results indicate concentrations on the order of 5 ppb are detectable using this method.

Spectrophotometric determination of phosphate in river waters with molybdate and malachite green

The Analyst ◽  
1983 ◽  
Vol 108 (1284) ◽  
pp. 361-367 ◽  
Author(s):  
Shoji Motomizu ◽  
Toshiaki Wakimoto ◽  
Kyoji Tôei
Keyword(s):  
Malachite Green ◽  
Spectrophotometric Determination ◽  
River Waters
Sign in / Sign up

Export Citation Format

Share Document