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. Author manuscript; available in PMC: 2012 Apr 22.
Published in final edited form as: J Phys Chem B. 2010 Aug 12;114(31):9947–9955. doi: 10.1021/jp101347q

Table 1.

Apparent third order rate constants for the molybdenum blue [Si(OH)4] assay.

pH of condensation Apparent third order rate constant · 106/mM−2s−1
6.8 3.4 ± 0.24
6.4 1.41 ± 0.10
5.7 0.35 ± 0.03
4.7 0.04 ± 0.003
3.4 No measurable condensation