Matrix effects and their control during the flameless atomic absorption determination of arsenic

1976 ◽  
Vol 48 (7) ◽  
pp. 1014-1016 ◽  
Author(s):  
Paul R. Walsh ◽  
James L. Fasching ◽  
Robert A. Duce
Keyword(s):  
Atomic Absorption ◽  
Matrix Effects ◽  
Flameless Atomic Absorption ◽  
Atomic Absorption Determination ◽  
Absorption Determination

Solvent Extraction and Flameless Atomic Absorption Determination of Arsenic in Biological Materials

1980 ◽  
Vol 63 (3) ◽  
pp. 496-499 ◽  
Author(s):  
Nancy Thiex
Keyword(s):  
Atomic Absorption ◽  
Absorption Spectrometry ◽  
Biological Materials ◽  
Rat Tissues ◽  
Flameless Atomic Absorption ◽  
Atomic Absorption Determination ◽  
Coefficients Of Variation ◽  
Absorption Determination ◽  
Flameless Atomic Absorption Spectrometry

Abstract This method for the determination of arsenic specifies wet digestion of biological materials, followed by reduction of arsenic(V) to arsenic(III) and extraction of arsenic(III) with diethylammonium diethyldithiocarbamate (DDDC) in chloroform. The extract is analyzed by flameless atomic absorption spectrometry (AAS). Recoveries of arsenic from plant and animal tissues ranged from 88 to 108%, averaging 99%. Analyses of rat tissues, using a radioisotope technique, averaged 103% of theoretical. Repeatability studies on rat tissues showed the method to be consistent with coefficients of variation ranging from 3.0 to 8.5%, and a test for ruggedness showed that the method is not affected by slight variations in procedure, but is affected by the presence of Fe and Cu. The method is sensitive to about 0.04 μg arsenic in the total digest (injections of 20 μl of a 4 ng/mL solution).

Direct flameless atomic absorption determination of lead in the blood

1973 ◽  
Vol 45 (4) ◽  
pp. 795-798 ◽  
Author(s):  
Jae Y. Hwang ◽  
Paul A. Ullucci ◽  
Charles J. Mokeler
Keyword(s):  
Atomic Absorption ◽  
Flameless Atomic Absorption ◽  
Atomic Absorption Determination ◽  
Absorption Determination
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