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Continuous-flow (CF) and flow-injection (FI) analysis using the fluoride ion-selective electrode (FISE) as detector have been investigated. The measurements were performed in a home-made cell under appropriate flow conditions (2.86 or 3.45mlmin -1 , 0.2ml samples, 10 -6 M sodium fluoride). The calibration graph was obtained by plotting the signal height versus concentration...
Fluoride-selective electrode with LaF 3 -membrane and stainless steel internal contact has been prepared. The electrode has been tested in F − concentration range 10 −2 –10 −6 M and the results compared with those of commercial electrode and electrode with laboratory renewed internal electrolytic contact. The properties of simple disjoining solid-state contact have...
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