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HI98120 ORP/°C-Tester, waterproof
1 × ฿8,560.00 -
×
เครื่องวัดปริมาณแอมโมเนีย ในน้ำ รุ่น HI715
1 × ฿3,103.00
Subtotal: ฿11,663.00
Chemischer Testkit zur Bestimmung von Phosphat, Sulfit, pH im Bereich 0.0 – 2.0 mg/L (ppm).
Packungsgröse: 50/110 Tests
| Messbereich |
Phosphat: 0-5 mg/L (ppm) Sulfit: 0.0-20.0 mg/L (ppm) / 0-200 mg/L (ppm) pH: 0.0-14.0 pH |
| Methode |
Colorimetric / Titration /Elek. pH Tester |
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Nitrate is reduced to nitrite in the presence of cadmium. The nitrite thus produced reacts with the reagent to yield an orange compound. The amount of color developed is proportional to the concentration of nitrate present in the aqueous sample.