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Hexavalent Chromium Removal and Reduction to Cr (III) by Polystyrene Tris(2 aminoethyl)amine

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Figure

Figure 1. Percent removal of Cr (VI) on polystyrene tris(2-aminoethyl) amine as a function of adsorbent dosage as determined by UV-Visible spectroscopy (T = 25˚C, Contact time = 3 hours, pH = 5, Initial concen-tration = 10 ppm)
Figure 3. Percent removal of Cr (VI) on polystyrene tris(2-aminoethyl) amine as a function of contact time by UV-Visible spectroscopy (T = 25˚C, pH = 5, Adsorbent dosage = 10 g/L, Initial concentration of Cr (VI) = 10 ppm)
Figure 5. Concentration of Cr (III) found in solution as a function of contact time with polystyrene tris(2-aminoethyl)amine by ICP-MS spec-trometry (T = 25˚C, pH = 5, Adsorbent dosage = 10 g/L, Initial concen-tration of Cr (VI) = 10 ppm)
Figure 8. Percent removal of Cr (VI) and total Cr on polystyrene tris(2-aminoethyl)amine as a function of initial concentration of Cr (VI) (T = 25˚C, pH = 5, Contact time = 2 hours, Adsorbent dosage = 10 g/L)
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