Comparison of total ionic strength adjustment buffers III and IV in the measurement of fluoride concentration of teas.

This highly significant correlation suggests that the difference in F concentration measured by the two TISABs increased with the magnitude of Al concentration, i.e. an increase in the difference in F concentration measured between the two TISABs of 0.123 mg/l for every 1 unit increase in Al concentration (mg/l).

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