Performance |
Measuring Range | (5) to 50 mg/L |
Sampling Time | 3 minutes |
Detecting Limit | 5 mg/L |
Colour Change | White → Red |
Reaction Principle | Ni + Dimethyl glyoxime → Complexcompound |
Shelf Life | 3 Years |
Corrections for temperature &humidity | Unnecessary |
Store the tubes at cool and darkplace. |
Possible coexisting substances and theirinterferences (NOTE) |
Substance | Concentration | Interference | Change colour by itselfto |
| 20 mg/L | | No (1000mg/L) |
Al | 30 mg/L | | |
Co | 3 mg/ L | | |
CN- | 10 mg/L | | No (100mg/L) |
Fe2+ | 5 mg/L | | Brown (60mg/L) |
Fe3+ | 100 mg/L | | No (1000mg/L) |
Cu | 5 mg/L | | Reddish brown / yellowishGreen(50mg/L) |