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Table 1 Apparent, first-order rate constants determined from batch and Q-XAS experiments

From: Catalytic oxidation of arsenite and reaction pathways on the surface of CuO nanoparticles at a wide range of pHs

  Experiment type Time period (h) No. of data points k (h−1) R2
In air As(III)—Batch-pH 6 36 14 0.013 0.96
As(III)—Batch-pH 9 48 14 0.014 0.93
As(III)—Batch-pH 11 36 12 0.14 0.99
In N2 As(III)—Batch-pH 11 10 11 0.012 0.96
In air As(III)—Q-XAS-pH11 8 376 0.030 0.66
  1. The rate constants of As(III) depletion were determined by linear regression analysis of the noted time-periods for the plots in Additional file 1: Fig. S2