Determination of calcium, magnesium, sodium and potassium in rabbit caudate nuclei by atomic absorption spectrophotometry

Life Sciences ◽  
1965 ◽  
Vol 4 (9) ◽  
pp. 945-948 ◽  
Author(s):  
Ruth C. Hanig ◽  
M.H. Aprison
Keyword(s):  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Caudate Nuclei ◽  
Absorption Spectrophotometry ◽  
Calcium Magnesium ◽  
Sodium And Potassium

Minerals in Feeds by Atomic Absorption Spectrophotometry

1967 ◽  
Vol 50 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Mary Heckman
Keyword(s):  
Sample Preparation ◽  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Absorption Spectrophotometry ◽  
Wet Digestion ◽  
Dry Ashing ◽  
Mineral Mixture ◽  
Calcium Magnesium ◽  
Calcium And Magnesium

Abstract Seventeen laboratories collaborated in the study of analysis of feeds for calcium, magnesium, zinc, manganese, iron, and copper by atomic absorption spectrophotometry. Six feeds and one mineral mixture were analyzed; both dry ashing and wet digestion were used to prepare samples. Three feeds were in the form of solutions to eliminate sample preparation as a variable. Strontium and lanthanum were added to the feed to eliminate phosphorus interference and results were compared. Results indicate that the method is suitable for calcium and magnesium. Further work is needed on the determination of zinc, manganese, iron, and copper.

Flameless atomic absorption spectrophotometric determination of manganese in rat brain and other tissues.

1978 ◽  
Vol 24 (3) ◽  
pp. 471-474 ◽  
Author(s):  
E Bonilla
Keyword(s):  
Detection Limit ◽  
Atomic Absorption ◽  
Biological Tissues ◽  
Atomic Absorption Spectrophotometry ◽  
Tissue Samples ◽  
Flameless Atomic Absorption ◽  
Absorption Spectrophotometry ◽  
Standard Additions ◽  
Sodium And Potassium

Abstract I describe a method for determining manganese in biological tissues by flameless atomic absorption spectrophotometry, It is simple to perform and does not require prior extraction with solvents. Small tissue samples are dried for 48 h at 110 degrees C and dissolved in concentrated nitric acid; the clear acid solution is introduced into the furnace and the sequential drying (120 degrees C, 20 s), charring (800 degrees C, 70 s), and atomization (2400 degrees C, 8 s) are automatically performed. The technique of standard additions was used ot overcome matrix effect. The detection limit is 0.86 X 10(-11) g of Mn. The CV is 4.7%. Only sodium and potassium interfere at 500-fold concentrations, and their interferences were overcome by using the Deuterium Arc Background Corrector.

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