Analytical Suite Metadata

Bondar-Clegg Fluorine ISE



 Fluorine analysis was performed on the till samples using a using a fluoride ion specific electrode (F ISE).  The analyses were performed by Bondar-Clegg Laboratories, in Vancouver, British Columbia.

General Methodology:

Fluorine was determined as described by Ficklin (1970).  A 250 mg sample is sintered with 1 g of a flux consisting of two parts by weight sodium carbonate and one part by weight potassium nitrate.  The residue is then leached with water.  The sodium carbonate is neutralized with 10 ml 10% (w/v) citric acid and the resulting solution is diluted to 100 ml with water.  The pH of the resulting solution should be from 5.5 to 6.5.  The fluoride content of the test solution is then measured using a fluoride ion electrode.  Standard solutions contain sodium carbonate and citric acid in the same quantities as the sample solution.

Reference:

Ficklin, W. H. (1970).  A rapid method for the determination of fluoride in rocks and soils, using an ion selective electrode.  U.S. Geol Surv Paper 700C p C186-C188.

Instrument: unstated

Sample material: solid

Sample weight: unstated


Analytical Technique:

Hierarchical classification

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

Children

Glass electrode


Analytical Decomposition:

Hierarchical classification

Decomposition >> Fusion >> Alkaline >> Carbonate + … >> Na2CO3-KNO3

Children

None


Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  1128     F_ISE  20

Associated Analytical Packages:

IndexPackage IDPackage Name
1  49     Bondar Clegg INAA + AAS + HY-AAS + F ISE + Hg-CVAAS + U NADNC + LOI
2  412     Bondar Clegg (NGR stream sediment) AAS (8+7), CVAAS (Hg),W, LOI, F, U
3  419     Bondar Clegg (NGR lake sediment) AAS (8+5), CVAAS (Hg), LOI, F, U(5**10, He detector, 20s, d.l.=0.5)
4  421     Bondar Clegg (NGR lake sediment) AAS 8+6+Ba (HCLO4 only)), CVAAS (Hg),W, LOI, F, U(10**12)
5  422     Bondar Clegg (NGR stream sediment) AAS (8+6), Ba (HClO4 only), CVAAS (Hg), W, LOI, F, U(10**12)
6  423     Bondar Clegg (NGR lake sediment) AAS (8+5), CVAAS (Hg), LOI, F, U(10**12)
7  426     Bondar Clegg (NGR stream sediment) AAS (8+6), DCP (Ba), CVAAS (Hg), W, LOI, F, U
8  427     Bondar Clegg (NGR stream sediment) AAS(8+6), DCP (Ba), CV(Hg), COL (W), LOI at 500°C, F, U
9  429     Bondar Clegg (NGR lake sediment) AAS (8+5), CV(Hg), LOI at 500C, F, U - 10**12 flux
10  432     Bondar Clegg (NGR lake sediment) AAS(8+7), CV(Hg), LOI, W, F, U
11  435     Bondar Clegg (NGR lake sediment) AAS(8+7), CV(Hg), LOI, W, F,
12  439     Bondar Clegg (NGR stream sediment) AAS(8+6), CV(Hg), LOI, F, U
13  440     Bondar Clegg (NGR lake sediment) AAS (8+3+(Mo+V: 2.5 ml conc)), CVAAS (Hg), LOI, F, U(10**12)
14  446     Bondar Clegg (NGR stream sediment, YT, 1990) AAS(8+4), CV(Hg), LOI, F
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