Nitrate
Product Name | Type | Gradation of scale or limit of sensitivity |
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Nitratesmo | qualitative test paper | 10 mg/L Nitrate (NO3-) 5 mg/L Nitrite (NO2-) |
90611 |
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QUANTOFIX® Nitrate/Nitrite | Semi-quantitative test strips | 0 · 10 · 25 · 50 · 100 · 250 · 500 mg/L NO3- (Nitrate) 0 · 1 · 5 · 10 · 20 · 40 · 80 mg/L NO2- (Nitrite) |
91313 |
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QUANTOFIX® Nitrate/Nitrite 100 |
Semi-quantitative test strips | 0 · 5 · 10 · 25 · 50 · 75 · 100 mg/L NO3- (Nitrate) 0 · .5 · 2 · 5 · 10 · 25 ·25 · 50 mg/L NO2- (Nitrite) |
91351 |
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VISOCOLOR® ECO Nitrate | colorimetric test kit (refill pack) | 0 · 1 · 3 · 5 · 10 · 20 · 30 · 50 · 70 · 90 · 120 mg/L NO3- | 931041 |
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Nitratesmo | qualitative test paper | 10 mg/L Nitrate (NO3-), 5 mg/L Nitrite (NO2-) | 90611 |
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Potassium Iodate starch paper | qualitative test paper | 5 mg/L SO2 | 90753 |
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Note: mg/L is equivalent to ppm
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#90611 Nitratesmo |
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This test paper allows the reliable detection of Nitrate and Nitrite. It shows different colors for the two ions. |
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Instruction Sheet (pdf) | ||||||||
Color reaction: | Nitrate: white → red | (dip test paper into sample and afterwards into sulfuric acid 96%) | ||||||
Nitrite: white → yellow | (dip test paper into sample and afterwards into Hydrochloric acid 5 mol/l) | |||||||
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#91313 QUANTOFIX® Nitrate/Nitrite |
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These test strips are for the rapid and reliable determination of Nitrate and Nitrite in solutions. The easy dip-and-read-procedure of the test strips provides a reliable result within 1 minute. QUANTOFIX® Nitrate / Nitrite test strips are the ideal choice to check nitrate and nitrite levels quickly and safely. |
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Instruction Sheet (pdf) | ||||||||
Color reaction: | white → red-violet |
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#91351 QUANTOFIX® Nitrate/Nitrite 100 |
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This test is the highly sensitive version of QUANTOFIX® Nitrate / Nitrite. It allows to detect nitrate down to 5 mg/L . | ||||||||
Instruction Sheet (pdf) | ||||||||
Color reaction: | yellow → red-violet | |||||||
Shelf life: | at least 2.5 years | |||||||
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#931041 VISOCOLOR® ECO Nitrate |
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Nitrate is reduced to nitrite with an inorganic reducing agent. Nitrite is then diazotised with an aromatic amine and simultaneously coupled to form an azo dye. |
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Instruction Sheet (pdf) | ||||||||
Shelf life: | at least 1.5 years | |||||||
Sea water suitability: | yes | Detectible with PF-12: | yes | |||||
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#90753 Potassium Iodate starch paper |
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The test paper allows the rapid detection of sulphit and sulphur dioxide. The paper is used in food analyzing laboratories. The reaction is as follows: 2 IO3- + 5 SO32- + 2 H+ → 5 SO42- + I2 + H2O |
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Color reaction: | white → blue-black |