Sample (Coffee & Tea)

Concentration of Fluoride (mg/L) by direct Measurement

Concentration of Fluoride (mg/L) by standard addition method

C1

0.084

0.083

C2

0.083

0.083

TE1

0.077

0.076

TE2

0.074

0.072

TE3

0.024

0.025

TE4

0.016

0.015

TE5

0.011

0.010