Comparison between neutron activation analysis and graphite furnace atomic absorption spectrometry for trace aluminum determination in biological materials
Journal Article
·
· Anal. Chem.; (United States)
A simple and rapid method for the determination of trace aluminum in urine and bone using atomic absorption with graphite furnace atomization is described. Direct atomization of raw urine and nitric acid dissolved bone resulted in aluminum values that were systematically higher for bone and variable for urine, as compared to a neutron activation analysis procedure. This was the result of calcium and phosphate interference of the aluminum signal. The optimum procedure involves digestion of bone or urine at 60/sup 0/C with concentrated nitric acid and a solution containing CaCl/sub 2/ and K/sub 2/HPO/sub 4/ to negate the effects of varying calcium and phosphate contents in the samples. The residue was brought up to volume and injected into the graphite furnace. Detection limits (2 sigma) of 20 ppB are reported. The precision of the method is 3 percent RSD when measured at the 600-pg analytical level.
- Research Organization:
- Veterans Administration Hospital, Omaha
- OSTI ID:
- 5269205
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 50:1; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
400104 -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
ACCURACY
ACTIVATION ANALYSIS
ALUMINIUM
BARYON REACTIONS
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
BODY
BODY FLUIDS
BONE TISSUES
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
CONNECTIVE TISSUE
ELEMENTS
HADRON REACTIONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
NEUTRON REACTIONS
NITRIC ACID
NUCLEAR REACTIONS
NUCLEON REACTIONS
SENSITIVITY
SPECTROSCOPY
TISSUES
TRACE AMOUNTS
URINE
WASTES
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
400104 -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
ACCURACY
ACTIVATION ANALYSIS
ALUMINIUM
BARYON REACTIONS
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
BODY
BODY FLUIDS
BONE TISSUES
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
CONNECTIVE TISSUE
ELEMENTS
HADRON REACTIONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
NEUTRON REACTIONS
NITRIC ACID
NUCLEAR REACTIONS
NUCLEON REACTIONS
SENSITIVITY
SPECTROSCOPY
TISSUES
TRACE AMOUNTS
URINE
WASTES