Barrett Johnson

To assess matrix effects in the IC methods, Cl–N–NO 2– was added at concentrations of 15, 25, 50, and 100 μg L –1 into the synthetic GW, eight chloraminated tap waters, and three free chlorine tap waters. Table s3 shows their pH (7.3–8.8), total chlorine (≤3.0 mg L –1 as Cl 2 ), monochloramine (≤2.7 mg L –1 as Cl 2 ), and free chlorine (≤2.4 mg L –1 as Cl 2 ).

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