Research Article

Characterization of Environmental Nano- and Macrocolloid Particles Extracted from Selected Soils and Biosolids

Figure 4

Nano- and macrocolloid zeta potential as a function of pH. Mean values of triplicate soil colloid samples with background electrolyte of 0.001 M NaCl. Error bars represent standard deviations among triplicate measurements.
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(a) Smectitic
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(b) Mixed
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(c) Kaolinitic
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(d) Biosolid