Differential pulse voltammetric indirect determination of aluminium in drinking waters, blood, urine, hair, and medicament samples using L-dopa under alkaline conditions
2000
The differential pulse voltammetric (DPV) indirect
determination of aluminium using L-dopa under alkaline
conditions on a glassy carbon working electrode was studied. The proposed
method relies on the linear decrease of the DPV anodic peak current of
L-dopa with increase in the concentration of aluminium added.
Under the optimum experimental conditions (pH 8.5, 0.08 M
NH4Cl–NH3·H2O buffer
solution, and 4 × 10−4 M L-dopa), the
linear range is 2–18 × 10−7 M Al
III. The detection limit is 7.6 × 10−8 M
and the relative standard deviation for 8 × 10−7 M
Al III is 3.5% (n = 8). A number of foreign species
were examined as potential interferents. The method was applied to the
determination of aluminium in drinking waters, synthetic renal dialysate,
sodium chloride injection, sucrafate, hydrothorax, blood, urine and hair
samples. The physiological significance is discussed.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
21
References
18
Citations
NaN
KQI