Sample Hs-g-poly-     Pg Dye concentration of the test solution at different time intervals (×10-4 mol L-1) 1 h 2 h 3 h 4 h 5 h 6 h 7 h H. sabdariffa - 4.96 4.38 4.08 4.08 3.79 3.21 3.21 (MA)  60.24 5.25 5.25 4.96 4.96 4.67 4.67 4.67 (MA-co-VA) 138.52 5.84 5.84 5.54 5.54 5.54 5.54 5.54

Table 5: Dye uptake studies of the graft copolymers vis-à-vis back bone.

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