Figure 1

Combined fatty acid concentrations.
Total yields of C3,5,7,9-monocarboxylic acids of runs a to d are plotted on a logarithmic scale: a: NiS, pH8.8; b: NiS, pH6.7; c: coprecipitated NiS and α-Ni(OH)2, pH8.3; d: NiS, precipitated onto β-Ni(OH)2, pH8.9; for detailed information see Suppl. Table S1.