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Selective Spectrophotometric Determination of Aluminium in the Presence of Beryllium and Lanthanide Cations
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nan, Zhou |
| Copyright Year | 2003 |
| Abstract | Abstract.A spectrophotometric method for the selective determination of Al(III) in the presence of Be and Ln (lanthanide) cations is proposed. It is based on the selective reaction of SXO (Semi-Xylenol Orange) with Al(III) at pH 2.6. The presence of 8% v/v of 1,2-ethanediol serves to stabilize the chelate formed by heating at 100 °C for 5 min. 0.5 mg each of Be(II), Ce(III), La(III), 4 mg of Mn(II), 1.2 mg of Pb(II), 1 mg of Tl(I), 40 mg each of Ca(II) and Mg(II) and 1.9 mg of sodium dihydrogen phosphate are tolerable. A ligand buffer of HEDTA-Pb is incorporated to further enhance the selectivity of the color reaction. Under the specified conditions SXO reacts with Al(III) to form a 1:1 chelate. Its molar absorptivity at 526 nm was found to be 3.3×104 L mol−1 cm−1. The linear regression equation for 2–20 µg of Al(III) is A=0.04458C+0.0112 (where C stands for the concentration of Al(III), µg per 25 mL) and correlation coefficient γ=0.9988. The RSD at the level of 10 µg (n=10) and LOQ were found to be 3.5% and 2 µg, respectively. |
| Starting Page | 73 |
| Ending Page | 78 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s00604-003-0083-4 |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/s00604-003-0017-1 |
| Alternate Webpage(s) | https://doi.org/10.1007/s00604-003-0083-4 |
| Volume Number | 146 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
