scholarly journals Determination of Aluminium in Human Tissues by Flameless Atomic Absorption Spectroscopy and Comparison of Reference Values

1986 ◽  
Vol 23 (1) ◽  
pp. 97-101 ◽  
Author(s):  
A. A. Bouman ◽  
A. J. Platenkamp ◽  
F. D. Posma
Keyword(s):  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Reference Values ◽  
Atomic Absorption Spectroscopy ◽  
Human Tissues ◽  
Flameless Atomic Absorption ◽  
Flameless Atomic Absorption Spectroscopy

Determination of Methyl Mercury in Fish by Flameless Atomic Absorption Spectroscopy and Comparison with an Acid Digestion Method for Total Mercury

1976 ◽  
Vol 59 (1) ◽  
pp. 153-157
Author(s):  
Jurgen L Kacprzak ◽  
Ramon Chvojka
Keyword(s):  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Methyl Mercury ◽  
Total Mercury ◽  
Inorganic Mercury ◽  
Flameless Atomic Absorption ◽  
Flameless Atomic Absorption Spectroscopy ◽  
The Difference

Abstract A method for the concurrent determination of methyl mercury and inorganic mercury by flameless atomic absorption spectroscopy (AAS) is described. Fifty-seven samples of juvenile black marlin fish were analyzed for inorganic and methyl mercury, and total mercury was calculated by addition of the 2 values. The sensitivity of the method was estimated to be 0.029 μg for inorganic mercury and 0.033 μg for methyl mercury. The detection limit of the method was about 0.02 μg inorganic mercury or methyl mercury and the error of the method was found not to exceed 10% for samples giving about 10% deflection on the absorbance scale. Samples from the same fish were analyzed by a commonly accepted flameless AAS method for the determination of total mercury. When the results for total mercury from the 2 methods were statistically compared, using a paired t-test, the difference between the results obtained by the 2 methods was found to be insignificant at the 95% confidence level.

Determination of Cobalt in Urine by Flameless Atomic Absorption Spectroscopy. Comparison of Direct Analysis Using Zeeman Background Correction and Indirect Analysis Using Extraction in Organic Solution

1986 ◽  
Vol 23 (3) ◽  
pp. 346-350 ◽  
Author(s):  
A A Bouman ◽  
A J Platenkamp ◽  
F D Posma
Keyword(s):  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Reference Values ◽  
Atomic Absorption Spectroscopy ◽  
Direct Analysis ◽  
Background Correction ◽  
Organic Solution ◽  
Flameless Atomic Absorption Spectroscopy ◽  
Zeeman Background Correction

Urinary cobalt was determined by flameless atomic absorption spectroscopy. Three methods were compared: (i) direct analysis with deuterium background correction after 11-fold dilution with distilled water (method D), (ii) analysis with deuterium background correction after extraction of cobalt from the urinary matrix in organic solution (method E), and (iii) direct analysis with Zeeman background correction (method Z). The detection limit of the direct analysis of urinary cobalt with deuterium background correction was 6 μg/L, this appeared to be insufficient for the determination of reference values and moderate enlarged cobalt values. Comparison of the extraction method and the Zeeman method revealed that these methods have similar reference values, detection limits, precision and recovery.

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