CJCU

Chem. J. Chinese Universities ›› 1984, Vol. 5 ›› Issue (1): 119.

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MATRIX INTERFERENCES FOR CADMIUM AND POTASSIUM IN A CONSTANT-TEMPERATURE FURNACE

Zheng Yansheng   

  1. Department of Chemistry, Jilin University, Changchun
  • Received:1982-09-15 Online:1984-02-24 Published:1984-02-24

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Abstract: In the paper the interferences of A1(NO3)3, Ca(NO3)2, Ni(NO3)2, CaCl2,CuCl,FeCl and ZnCl2 on cadmium and potassium in the constant-temperature furnace were described. The experiment showed that the matrix interferences for cadmium were small. But A1(NO3)3 depressed the absorption of cadmium for Al(NO3)3/Cd(NO3)2 ratio of 3000. The depression of Al(NO3)3 on cadmium was increased with decrease of the concentration of cadmium. The absorption of potassium was enhanced using Al(NO3)3, Ni(NO3)2, CaCl2, CuCl2, FeCl3 and ZnCl2 as matrices.

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