Specifications of Ion Selective Electrodes
From eDAQ Wiki
| Ion | Slope (mVdec) | Lineal_range | pH | Response_Time | Working_Temperature_C | Interferences_log_Kij |
|---|---|---|---|---|---|---|
| Ammonium | 54±5 | 0,09 to 9000 mg/L | 4 to 8.5 | < 1 min | 5 to 50 | K (-0,8); Na (-2,7) |
| NH4+ | 5e-6 to 0.5 mol/L | Mg (-3,2); Ca (-4) | ||||
| Bromide | -54±5 | 0,4 to 8000 mg/L | 1 to 12 | < 1 min | 5 to 50 | Error presence Ag, S, I or CN |
| Br- | 5e-6 to 0,1 mol/L | Cl (-2,7); OH (-4,5) | ||||
| Calcium | 24±5 | 0,4 to 4000 mg/L | 3.5 to 8 | < 1 min | 5 to 50 | NH4 (-3); K (-3,6) |
| Ca2+ | 1e-5 to 0,1 mol/L | Na (-3,7) | ||||
| Cyanide | -54±5 | 0,1 to 250 mg/L | 11 to 14 | < 1 min | 5 to 50 | Error in presence of Ag or S |
| CN- | 4e-6 to 0,01 mol/L | same selectivity for I- | ||||
| Chloride | -54±5 | 1,5 to 35000 mg/L | 2 to 12 | < 1 min | 5 to 50 | Error presence of Ag or S |
| CI- | 4e-5 to 1 mol/L | Irreversible damage to membrane | ||||
| Copper | 24±5 | 0,06 to 3200 mg/L | 2 to 7 | < 1 min | 5 to 50 | Error in presence of Ag, Cl or S |
| Cu2+ | 1e-6 to 0,05 mol/L | Alterations presence or I | ||||
| Fluoride | -54±5 | 0,1 to 1900 mg/L | 4 to 8 | < 1 min | 5 to 50 | OH (-1) |
| F- | 5e-6 to 0,1 mol/L | Maintain pH < 8 | ||||
| Iodide | -54±5 | 0,1 to 12000 mg/L | 2 to 12 | < 1 min | 5 to 50 | Error in presence of Ag or S |
| I- | 1e-6 to 0,1 mol/L | Br (-3,4); Cl (-6) | ||||
| Lithium | 54±5 | 0,1 to 5000 mg/L | 2 to 12 | < 1 min | 5 to 50 | Na (-2,3); K (-2,4) |
| Li+ | 1e-5 to 0,7 mol/L | H (-3) | ||||
| Magnessium | 24±5 | 2,4 to 2400 mg/L | 3 to 8.5 | < 1 min | 5 to 50 | Ca (-1); K (-3,6) |
| Mg2+ | 1e-4 to 0,1 mol/L | Na (-3,9) | ||||
| Nitrate | -54±5 | 0,6 to 31000 mg/L | 2 to 11 | < 1 min | 5 to 50 | Br (-1,2); NO2 (-1,7) |
| NO3- | 1e-5 to 0,5 mol/L | OH (-1,8); AcO (-2,2) | ||||
| Nitrite | -54±5 | 2,5 to 1000 mg/L | 4 to 8 | < 1 min | 5 to 50 | SCN (-0,2); I (-2,2) |
| NO2- | 5,4e-5 to 0,02 mol/L | ClO4 (-2,4); Br (-3,3) | ||||
| Perchlorate | -54±5 | 1 to 10000 mg/L | 1 to 11 | < 1 min | 5 to 50 | SCN (-1,7); NO3 (-1,7) |
| ClO4- | 1e-5 to 0,1 mol/L | I (-1,7) | ||||
| Silver | 56±5 | 0,1 to 10000 mg/L | 1 to 9 | < 1 min | 5 to 50 | Error in presence of S or Hg |
| Ag+ | 1e-6 to 0,1 mol/L | |||||
| Potassium | 54±5 | 0,4 to 3900 mg/L | 1 to 9 | < 1 min | 5 to 50 | NH4 (-2,1); Ca (-3,9) |
| K+ | 1e-5 to 0,1 mol/L | Li (-4,3); Na (-4,6) | ||||
| Sodium | -27±5 | 0,1 to 3200 mg/L | 1 to 9 | < 1 min | 5 to 50 | K (-2,5); Ca (-3) |
| Na+ | 3e-6 to 0,1 molL | Li (-3,2) | ||||
| Sulfide | -54±5 | 0,4 to 8000 mg/L | 12 to 14 | < 1 min | 5 to 50 | Error in presence of Ag or Hg |
| S2- | 5e-6 to 0,1 mol/L |
