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GAS221LL Chloride Ions Gastec Soluble Ion Tubes 10 – 200mg/L
GAS221LL Gastec Chloride Ion Detector Tubes
The soluble ion tube system offers a quicker, cheaper and easier alternative to using laboratory based anaylsers for measuring dissolved substances
(i.e. in solution).
To measure, simply immerse the detector tube in a sample of liquid (placed in a beaker or other container). Anyone can measure concentrations quickly, easily and accurately on site.
|Measuring Range||10 to 200 mg/l|
|Sampling Time||3 minutes|
|Detecting Limit||3 mg/l|
|Colour Change||Brown White|
|Reaction Principle||2Cl– + Ag2CrO4 (Brown) 2AgCl (White) + CrO42+|
|Coefficient of Variation||15% (for 10 to 50 mg/l), 10% (for 50 to 200 mg/l)|
|Shelf Life||3 Years|
temperature & humidity
|Store the tubes at cool and dark place.|
|Possible coexisting substances and their interferences|
|Substance||Concentration||Interference||Change colour by itself|
|CN–||≥10 mg/l||Plus error||White discoloration (≥1 mg/l)|
|Br–||≥10 mg/l||Plus error||White discoloration (≥10 mg/l)|
|SCN–||≥1 mg/l||Plus error||White discoloration (≥100 mg/l)|
|Fe2+||≥20 mg/l||Minus error||No discoloration (≤1000 mg/l)|
|Fe3+||≥20 mg/l||Plus error||White discoloration (≥20 mg/l)|
|F–||≥1000 mg/l||No error||No discoloration (≤1000 mg/l)|
|I–||≥20 mg/l||Plus error||Pale yellow discoloration (≥20 mg/l)|
|S2-||≥3 mg/l||Plus error||Blackish grey discoloration (≥3 mg/l)|
|SO42-||≥1000mg/l||No error||No discoloration (≤1000 mg/l)|
|Calibration gas generation||Sodium Chloride standard solution|
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