This tool allows you to assess the ion content in materials using ion test strips. When full sampling for comprehensive analysis isn’t feasible, ion test strips offer limited but valuable insights.
Note: This method provides semi-quantitative results. For comprehensive analysis, it is advisable to conduct a complete ion analysis of the seven most common ions: Ca²⁺, SO₄²⁻, Na⁺, K⁺, NO₃⁻, Cl⁻, Mg²⁺.
See: Salt mixtures in stone weathering | Scientific Reports (nature.com)
How to Use the Ion Test Strips
- Weigh the dry material sample accurately (in grams).
- Add a known amount of pure water to the sample (in milliliters).
- Immerse the ion test strip into the solution according to the manufacturer’s instructions.
- Wait for the specified time and read the value from the test strip color chart.
Important: Ensure precise measurements of both the dry material and the water used for accurate calculations.
Input Data
Interpretation and Limitations
The results are semi-quantitative and may have deviations due to factors like cross-reactivity with other ions, differences in material depth, and varying ion distributions.
For example, a high chloride content could be due to the presence of potassium, magnesium, calcium, or sodium chloride. Similarly, sulfate detected might be from calcium sulfate (anhydrous gypsum) or the highly destructive sodium sulfate.
Understanding the full ionic composition is crucial for accurate assessment and mitigation strategies.