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The chloride is extracted from the sample by dissolving in 1 Molar nitric acid which also acts as an ionic strength adjustment buffer.

Calcium is extracted from the soil sample using sodium acetate (pH 8.2) and then directly measured using a Calcium ISE.

The concentration of Calcium in Beer is determined directly by using the technique of standard addition.

Monitoring the Hull can indicate the need to replace Sacrificial Anodes or indicate corrosion issues.

The EDT directION Fluoride electrode is used in the following titration of Aluminium ions with a sodium fluoride titrant.