scholarly journals Determination of microamounts of cadmium and zinc in copper, nickel, aluminum and uranium metals by solvent extraction-atomic absorption spectrophotometry

1971 ◽  
Vol 20 (9) ◽  
pp. 1137-1142 ◽  
Author(s):  
Toshiaki KUROHA ◽  
Iwao TSUKAHARA ◽  
Seiji SHIBUYA
Keyword(s):  
Solvent Extraction ◽  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Nickel Aluminum ◽  
Absorption Spectrophotometry ◽  
Copper Nickel

The use of chelates of copper, nickel, cobalt, cadmium and zinc with heterocyclic azodyes in the AAS determination of these elements

1979 ◽  
Vol 44 (11) ◽  
pp. 3241-3255 ◽  
Author(s):  
Josef Komárek ◽  
Josef Havel ◽  
Lumír Sommer
Keyword(s):  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Isobutyl Ketone ◽  
Group Of Seven ◽  
Absorption Spectrophotometry ◽  
Copper Nickel ◽  
Nickel Cobalt ◽  
Optimum Extraction ◽  
Extraction Equilibria

Of the group of seven pyridyl, thiazolyl and quinolyl azodyes, 2-(2-pyridylazo)-1-naphthol was found to be the most useful for the extraction concentration of traces of copper, nickel, cobalt, cadmium and zinc in methyl isobutyl ketone and for their final determination by atomic absorption spectrophotometry with an acetylene-air flame or using a graphite atomizer. Atomic absorption spectrophotometry was also found to be useful in the study of extraction equilibria and for finding the optimum extraction conditions for these elements with heterocyclic azodyes.

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