JEQ -- Clausen et al. 30 (3): 846 Figure IG7

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Fig. 7. Effect of CaCl₂ as electrolyte on the sorption of selected pesticides by quartz, calcite, ${alpha}$ -alumina, and kaolinite. The solution conditions are: temperature = 10°C, pH (quartz) = 6.7 ± 0.1, pH (calcite) = 8.8 ± 0.1, pH ( ${alpha}$ -alumina) = 7.0 ± 0.1, pH (kaolinite with CaCl₂) = 5.9 ± 0.1, and pH (kaolinite without CaCl₂) = 6.5. Error bars indicate standard deviation.