F- concentrations in drinking water samples, mice tissues and urine in the control and N117-treated groups after 24-day exposure.

Values were obtained using an ion-chromatograph system (for drinking water) or a fluoride ion selective electrode (for mice tissues and urine). Twenty-four male mice (five-weeks of age) were individually exposed to normal diet (Control), 1/100 wt% N117-treated food (Food), 100 mg N117/L treated by combustion lacking oxygen supplementation (CLOS), and 100 mg N117/L treated by oxygen-enriched combustion (OEC) for 24 days, with six mice in each group. After the exposure, the drinking water samples, mice tissues (liver, kidney and muscle) and urine were assayed for F- concentrations. Data are the mean ± standard deviation (SD), n = 6 for each data point.** p t test.F- concentrations in drinking water samples, mice tissues and urine in the control and N117-treated groups after 24-day exposure.