Figure 2

Effect of (a) pH (pH = 2–11, and CTMS = 4.2 μg mL−1), (b) volume ratio (ratio = 0.05–0.2, pH = 3, and CTMS = 4.2 μg mL−1), and (c) interaction time (t = 0–23 min, pH = 3, ratio = 0.2, and CTMS = 4.2 μg mL−1). Error bars represent the standard deviation from three repetitions.