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Table T2. Analytical figures of merit.

  Pore water concentration (µM)
NO3
H4SiO40
Detection limits 0.7 ± 0.2 1 ± 0.4
Reproducibility (consistency standard replicates) 48.6 ± 3.4 722 ± 12

Detection limits are defined as three times the standard deviation of replicate measures of a blank of the same matrix as each sample, expressed in equivalent concentration for a typical sample size.

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