| Analysis of sodium, magnesium, potassium and lead are determined by ICP-ES (Inductively Coupled Plasma-Emission Spectroscopy) after digestion of the sample in nitric acid.
| Sodium (Na) |
| Normal Measuring Range |
0.01 - 2% |
| Quantification Limit |
0.01% |
| Magnesium (Mg) |
| Normal Measuring Range |
0.002-0.1% |
| Quantification Limit |
0.002% |
| Potassium (K) |
| Normal Measuring Range |
0.002-0.1% |
| Quantification Limit |
0.002% |
| Iron (Fe) |
| Normal Measuring Range |
0.2-1000 mg/kg |
| Quantification Limit |
0.2 mg/kg |
| Lead (Pb)* |
| Normal Measuring Range |
5-1000 mg/kg |
| Quantification Limit |
5 mg/kg |
| *Food Grade only |
ICP-ES can also be used to analyse most other metals in a calcium chloride sample.
An alternative to ICP-ES is AAS (Atomic Absorption Spectroscopy) either with flame or graphite furnace.
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