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Figure 3 | Geochemical Transactions

Figure 3

From: Adsorption of dissolved aluminum on sapphire-c and kaolinite: implications for points of zero charge of clay minerals

Figure 3

Effect of aluminium on SHG signals. a Effect of the addition of aluminum solution at pH 6 on the normalized SHG field in 1 mM NaCl for sapphire-c. Final concentration is 3 μM to mimic the streaming potential measurements shown in Figure 2. PPP and SSP are the two polarization combinations described in the experimental part. b. Effect of replacing the 3 μM aluminum solution containing 1 mM NaCl by fresh 1 mM NaCl solutions on SHG results for sapphire-c at pH 6. The initial values are from Figure 3a. Normalization of the raw data was done with respect to the absence of aluminum.

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