Determination of cadmium in water samples by substoichiometric radiochemical method employing potassium ethyl xanthate.
A radiochemical method has been developed for the determination of microgram amounts of cadmium based on the substoichiometric extraction of its 1:2 complex with potassium ethyl xanthate into 1:4 v/v mixture of pyridine and ethyl acetate from 2.5 M sodium formate. 10-90 micrograms of cadmium was determined with an average error of +/- 1.96%. The method developed was successfully applied to the determination of Cd contents in water samples.
Radiochemical Laboratories, Sri Venkateswara University, Tirtpati, India.
P C
PC
Reddy
B
B
Rangamannar
D002104:Cadmium / Q000032:analysis*; D008722:Methods; D011854:Radiochemistry; D011934:Reagent Strips; D013871:Thiones; D014867:Water / Q000032:analysis*
D011934:Reagent Strips; D013871:Thiones; D002104:Cadmium; D014867:Water; C004918:ethylxanthate