Quantitative Determination of Cadmium in Water-Soluble Color Additives by Atomic Absorption Spectroscopy

1972 ◽  
Vol 55 (5) ◽  
pp. 1145-1149
Author(s):  
Lueangier Moten
Keyword(s):  
Aqueous Solutions ◽  
Quantitative Determination ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Quantitative Method ◽  
Water Soluble ◽  
Low Levels ◽  
Absorption Measurements

Abstract A quantitative method is presented for the determination of cadmium at low levels (5–20 ppm) in water-soluble color additives by atomic absorption spectroscopy. Absorption measurements were made on aqueous solutions of typical color additives to which known amounts of cadmium had been added. The method requires no pretreatment of sample and should be applicable to all water-soluble color additives.

Quantitative Determination of Chromium in Triphenylmethane Color Additives by Atomic Absorption Spectroscopy

1970 ◽  
Vol 53 (5) ◽  
pp. 916-922
Author(s):  
Lueangier Moten
Keyword(s):  
Aqueous Solution ◽  
Quantitative Determination ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Routine Analysis ◽  
Color Additive

Abstract Trace amounts of chromium (0–60 ppm) in triphenylmethane color additives can be determined rapidly and precisely by atomic absorption techniques on a 5% aqueous solution of the color additive. The effect was determined of several sample-to-sample variations in composition that would be encountered in the routine analysis of these color additives for chromium by atomic absorption. The data show that it should be possible to determine chromium in these color additives at 5 ppm by atomic absorption spectroscopy.

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