Research Article
Surfactant Sensitized Calix[4]arenes Fluorescence Quenching Method for Speciation of Cr(VI)/Cr(III) in Water Samples
Table 2
Effect of interfering substances on fluorescence.
| | Foreign ions | Foreign/Cr(VI) (w/w) |
| | Na+ | 500.00 | | K+ | 500.00 | | 300.00 | | Mg2+ | 200.00 | | Cu2+ | 10.00 | | Zn2+ | 10.00 | | Ca2+ | 10.00 | | Ni2+ | 10.00 | | Cr3+ | 3.00 | | Pb2+ | 2.00 | | Cd2+ | 2.00 | | Hg2+ | 1.00 | | Cl− | 500.00 | | Br− | 500.00 | | Ac− | 300.00 | | 200.00 | | 200.00 | | 100.00 |
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