Methods for the analysis of Soil, Plant, Water, and Environmental Samples

CALCIUM AND MAGNESIUM
LIMING MATERIALS
ICP METHOD

EQUIPMENT

1. Thermo Jarrell-Ash Model 61E ICP

2. Thermo Jarrell-Ash Autosampler 300

3. 48 position rectangular racks

4. Hamilton Digital Diluter

5. 150 ml. glass beakers

6. Watch glasses

7. Hot Plate

REAGENT

1. Hydrochloric Acid    HCl

PROCEDURE

1. Weigh 1 g sample into a 150 ml. beaker.

2. Add 2-3 ml. deionized water in order to wet the sample.

3. Add 30 ml. concentrated hydrochloric acid.

4. Cover with a watch glass.

5. Place on a hot plate and heat until boiling.

6. Allow to cool and transfer into a 1 liter volumetric flask.

7. Dilute to volume with deionized water and mix well.

8. Do an additional 1 to 10 dilution using the Hamilton digital diluter.

9. Analyze the 1 to 10 dilution on the ICP using the WATER matrix.

CALCULATION

% element = PPM in solution