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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: Environ Sci Nano. 2016 May 10;3(3):657–669. doi: 10.1039/C6EN00064A

Fig. 2.

Fig. 2

Release of cadmium, selenium, zinc, and sulfur from QD/LDPE nanocomposite films into water (top row) and 3% aqueous acetic acid (bottom row) held at 75 °C as a function of immersion time, expressed as total released mass of the analyte in the 25 mL analyzed solution per unit surface area of exposed film. Green and red bars refer to release experiments using QD539/LDPE and QD609/LDPE, respectively. The inorganic weight fraction for both films was 2.08 mg mL−1. Each reported value is the average of measurements from four independent samples. Error bars represent standard deviations.