Analytical Suite Metadata

ActLabs 4F-F : F by ISE

General Methodology:

Samples 0.2 g in size are fused with a combination of lithium metaborate and lithium tetraborate in an induction furnace to release the fluoride ions from the sample matrix. The fuseate is dissolved in dilute nitric acid, prior to analysis the solution is complexed and the ionic strength adjusted with an ammonium citrate buffer. The fluoride ion electrode is immersed in this solution to measure the fluoride-ion activity directly. An automated fluoride analyzer from Mandel Scientific is used for the analysis.

[description retrieved on 2016-02-01 from]

Instrument: unstated

Sample material: solid

Sample weight: unstated

Analytical Technique:

Hierarchical classification

Technique >> Electrochemical techniques >> Potentiometry >> Ion-specific electrodes


Glass electrode

Analytical Decomposition:

Hierarchical classification

Decomposition >> Fusion >> Alkaline >> Borate/tetraborate



Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  5476     F_FUS_ISE  0.01

Associated Analytical Packages:

IndexPackage IDPackage Name
1  296     ActLabs GSC TGI4 whole rock analysis (variant #1)
2  297     ActLabs GSC TGI4 whole rock analysis (variant #2)
3  298     ActLabs GSC TGI4 whole rock analysis (variant #3)
4  313     ActLabs GSC TGI4 whole rock analysis (variant #4)
Date modified: