Extraction, Spectrophotometric and Atomic Absorption Spectrophotometric Determination of Molybdenum with Caffeic Acid and Application in High Purity Grade Steel and Environmental Samples

1989 ◽  
Vol 22 (7) ◽  
pp. 1807-1817 ◽  
Author(s):  
N. Shah ◽  
S. K. Menon ◽  
M. N. Desai ◽  
Y. K. Agrawal
Keyword(s):  
Atomic Absorption ◽  
Caffeic Acid ◽  
Spectrophotometric Determination ◽  
High Purity ◽  
Environmental Samples ◽  
High Purity Grade ◽  
Purity Grade ◽  
Grade Steel

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.

Facile and Sensitive Spectrophotometric Determination of Carbosulfan in Formulations and Environmental Samples

2006 ◽  
Vol 129 (1-3) ◽  
pp. 271-276 ◽  
Author(s):  
K. Suresh Kumar ◽  
K. Suvardhan ◽  
D. Rekha ◽  
K. Kiran ◽  
G. Chalapathi Rao ◽  
...  
Keyword(s):  
Spectrophotometric Determination ◽  
Environmental Samples

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

Determination of metals of low concentration in high purity copper by atomic absorption spectrophotometry

1975 ◽  
Vol 63 (1) ◽  
pp. 107-116 ◽  
Author(s):  
Katalin Z. Balla ◽  
Etelka G. Hars�nyi ◽  
L�szl� P�los ◽  
Ern� Pungor
Keyword(s):  
Atomic Absorption ◽  
High Purity ◽  
Atomic Absorption Spectrophotometry ◽  
Low Concentration ◽  
Absorption Spectrophotometry ◽  
Purity Copper
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