Natrium ionenselektiven Elektrode

Type 102 Sodium Ion Selective Electrode PNa glass electrode is an measuring sensor used for measuring the PNa value of an aqueous solution. 1.Characteristics Range: 0 to 7 PNa Response time: < 3min pH range: > 10pH Internal resistance: 150MΩ(25) Selective coefficients: Pot K <1×10-1 Na+ K+ 2.Note whenever a new electrode is used for the first time or used once again after laying for a long time. Soak the glass bulb in distilled water for about 3 hrs. Then rinsed repeatedly with deionized water up to the blank potential. Immerse the glass bulb in solution to be measured wholly. Care must be taken to prevent H+ interfering ion, for the used 0.2M DIA (or BaOH) the adjustment of pH value to pH10 in measurement solution. No contamination on the glass bulb. It can not be used in non-aqueous solution and denydrating agent. After measurement. The electrode should be rinsed to the blank potential, then absorbed with filter paper to dry, kept dry and taken shelter from light while storing.