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A Study on the Chelate Resin Concentration and AAS Determination for Sexavalence Chromium and Total chromium in Water

Chunfang Hou (Liaoning Provincial Environmental Monitoring Center, Shenyang 110031)  
The measure of resin enrich-AAS method for sexavalence chromium and total chromium in water clears up the determined interference of diphenyl carbazide spectrophotometry and the unstability of chemical reagent .The 2.5gdry weight resin is filled in the pipe ofφ8×70mm ion exchange resin. Measure 1.5mol/LHNO3 elution directly into atomic absorption spectrograph .The detection limit is 0.002mg/L.RSD is less than 3%.The proceedure is simple and easy to populate.
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