scholarly journals Atomic absorption spectrophotometric determination of zinc, cadmium, and lead after coprecipitation of their morpholine-4-carbodithioates with microcrystalline naphthalene.

1984 ◽  
Vol 33 (1) ◽  
pp. E17-E21 ◽  
Author(s):  
Chaman Lal SETHI ◽  
Bal Krishan PURI ◽  
Masatada SATAKE
Keyword(s):  
Atomic Absorption ◽  
Spectrophotometric Determination ◽  
Zinc Cadmium ◽  
Microcrystalline Naphthalene ◽  
Cadmium And Lead

Comparison of Methods for Determining Biuret in Urea

1979 ◽  
Vol 62 (1) ◽  
pp. 153-159
Author(s):  
Luis F Corominas ◽  
Victor M Boy ◽  
Manuel Guijosa
Keyword(s):  
Atomic Absorption ◽  
Spectrophotometric Determination ◽  
Atomic Absorption Spectrophotometry ◽  
International Organization ◽  
Comparison Of Methods ◽  
Definite Advantage ◽  
Absorption Spectrophotometry ◽  
Alternative Procedures ◽  
Aoac Method

Abstract The official first action AOAC method for the spectrophotometric determination of biuret in urea, 2.072—2.074, was compared with official first action AOAC method 2.C01-2.C03 (atomic absorption spectrophotometry), 2 simplified versions of 2.072-2.074, and modified versions of 2 alternative procedures of the International Organization for Standardization. Three synthetic urea samples (0.3, 1.4, and 3.0% biuret) and 1 commercial urea sample (1.0% biuret) were analyzed. The methods proved to be equivalent and none showed a definite advantage over 2.072-2.074. The purification of biuret and the interference by ammonia are also discussed.

scholarly journals Determination of cadmium and lead in beverages after leaching from pewter cups using graphite furnace atomic absorption spectrometry

Talanta ◽  
2011 ◽  
Vol 85 (1) ◽  
pp. 681-686 ◽  
Author(s):  
Morgana B. Dessuy ◽  
Maria Goreti R. Vale ◽  
Bernhard Welz ◽  
Aline R. Borges ◽  
Márcia M. Silva ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Graphite Furnace Atomic Absorption ◽  
Cadmium And Lead

Extraction-atomic-absorption spectrophotometric determination of antimony by generation of its hydride in non-aqueous media

The Analyst ◽  
1984 ◽  
Vol 109 (2) ◽  
pp. 123-125 ◽  
Author(s):  
José Aznárez ◽  
Francisco Palacios ◽  
Maria S. Ortega ◽  
Juan Carlos Vidal
Keyword(s):  
Atomic Absorption ◽  
Spectrophotometric Determination ◽  
Aqueous Media
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