Research Article
Dispersive Liquid-Liquid Microextraction of Bismuth in Various Samples and Determination by Flame Atomic Absorption Spectrometry
Table 1
Effect of foreign ions on the determination of 0.2 mg L
−1 Bi(III) using the DLLME proposed procedure (
).
| Ions | Added as | Concentration (mg L−1) | Recovery (%) |
| Na+ | NaNO3 | 3000 | 98 ± 5 | K+ | KNO3 | 1000 | 103 ± 3 | Fe3+ | Fe(NO3)3⋅6H2O | 1000 | 102 ± 4 | Ca2+ | Ca(NO3)2⋅4H2O | 1000 | 97 ± 4 | Mg2+ | Mg(NO3)2⋅6H2O | 1000 | 95 ± 3 | Zn2+ | Zn(NO3)2 | 100 | 98 ± 4 | Cr3+ | Cr(NO3)3⋅9H2O | 100 | 100 ± 3 | Cu2+ | Cu(NO3)2⋅4H2O | 100 | 97 ± 5 | Mn2+ | Mn(NO3)2⋅4H2O | 100 | 97 ± 3 | Cd2+ | Cd(NO3)2⋅4H2O | 100 | 99 ± 2 | Co2+ | Co(NO3)2⋅4H2O | 100 | 97 ± 3 | Pb2+ | Pb(NO3)2 | 70 | 96 ± 4 | Al3+ | Al(NO3)3⋅9H2O | 50 | 96 ± 4 | | Na2SO4 | 1000 | 102 ± 4 | | NaH2PO4⋅2H2O | 1000 | 100 ± 1 |
|
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Average ± standard deviation.
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