JEQ Journal of Natural Resources and Life Sciences Education
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Fig. 5. Correlations between pyrene log Koc values (pH 4, 0.1 M NaCl) and log MWw for dissolved and mineral-bound ({circ}, •: kaolinite; {square}, {blacksquare}: hematite) humic substances (HS): (a) different HS and (b) purified Aldrich humic acid (PAHA) ultrafiltration (UF) fractions.





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