Fluoride content in some Kenyan tea leaves
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Different grades and clones oftea from various parts of Kenya were analysed for total, acid and water labile ﬂuoride using ion selectiveelectrode. It was found that, about 80-99% of total ﬂuoride was acid labile while 40-90% of acid labile was water labile. The ﬂuoridecontent was found to vary with the age of the leaves with the old leaves showing higher ﬂuoride concentration indicate the values (oranges) of ﬂuoride extracts and how they differed with age. High pH resistant clones were found to contain higher ﬂuoride than low pH resistant.