This guide explains how to activate, calibrate, measure, maintain, and store the Mettler-Toledo chloride ion electrode.
The manual provides detailed instructions for preparing the chloride ion electrode, including activation in a 0.001 mol/L chloride solution and preparation of standard solutions. It describes the two‑point calibration procedure, measurement steps for both ionic meters and pH/mV meters, and how to construct a calibration diagram.
Additional sections cover electrode performance specifications, maintenance of the crystal surface, proper storage after use, and a list of accessories and part numbers. The document also outlines interfering ion limits and recommended operating conditions. This manual is written in Chinese.
| Ion selective membrane type | NaCl polycrystal |
|---|---|
| Measurement range | 5×10⁻⁵ to 1 mol/L Cl⁻ |
| Operating temperature range | 0 °C to 80 °C |
| Optimum pH range | 2 to 11 |
| Electrode internal resistance | < 50 MΩ |
| Interfering ion limits | CN⁻<2×10⁻⁷, I⁻<5×10⁻⁷, Br⁻<3×10⁻³, S₂O₃²⁻<0.01, NH₃<0.12, OH⁻<80 |
Soak the electrode in a 0.001 mol/L chloride solution for 1 hour, then rinse repeatedly with deionized water until the blank potential is stable and dab dry with paper.
Rinse the electrode with deionized water, dry it with filter paper, place the protective cap on the probe, and keep it in a dry environment.