Determination of Sodium Chloride in Foods and Other Samples by Quantab ™ Chloride Titrators

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6. Procedure

All other specific information related to either materials, equipment, general procedures, and interpretation of results can be found in the information summary sheet accompanying the test kits.

Note: all weights and volumes must be accurate!

6.1 It is imperative that a representative portion of the sample be removed from the sample unit and blended in a mason jar for two minutes.

6.2 Remove 10 g of finely blended sample and add 90 mL of boiling water and blend for 30 s. Allow to sit for one minute then blend again. Cool to room temperature. Filter at least 5 ml through a Whatman #1 filter paper folded into a cone as specified and supported in a conical funnel.

6.3 Insert Quantab ™ Chloride Titrator into filtrate in the test tube and follow test procedure.

7. Results

7.1 Determine the height of the white column in Quantab ™ units within the time specified (2-30 minutes). Samples should be diluted so that results are within a readable range for the selected strip.

8. Calculation Of % Sodium Chloride

8.1 Follow the directions specified to calculate % Sodium Chloride.

9. Interpretation

9.1 Follow manufacturer's instructions. If no sodium chloride is detected report as < the detection limit based on the strip used and amount the sample was diluted.

10. Calculation Of % Salt In The Water Phase Or % Brine

10.1 Determine the % moisture in the food using an acceptable method for the food being examined. Consult the Official Methods of the Association of Official Analytical Chemists (AOAC) or equivalent for the selection of an acceptable method.

10.2 Determine the % brine using the following equation.

10.3 Report % sodium chloride determined from the Quantab ™ strip and % moisture values.