4F - Cl (ISE)
0.2 g samples are fused with a combination of lithium metaborate and lithium tetraborate in an induction furnace to release the chloride ions from the sample matrix. The fuseate is dissolved in dilute nitric acid, prior to analysis the ion strength of the solution is adjusted. The chloride ion electrode is immersed in this solution to measure the fluoride-ion activity directly.
|
Analysis
|
Method
|
Detection Limit
|
|
Cl (ISE)
|
FUS-ISE
|
0.01%
|
|