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Fig. 4 | BMC Chemistry

Fig. 4

From: Biorenewable triblock copolymers consisting of l-lactide and ε-caprolactone for removing organic pollutants from water: a lifecycle neutral solution

Fig. 4

Overlay of UV/Vis spectra obtained during liquid–liquid extraction studies of select polymers 1 and 8.3 × 10−6 M Rose Bengal. The Rose Bengal absorbance decreased when combined with the polymers indicated in the figure legend. Inset: Comparison of aqueous (top layer) and organic (bottom layer) phases before mixing (left vial) and after mixing (right vial) with 1. The characteristic pink color of Rose Bengal disappeared

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