YSI 1004 Ammonium (ISE) Sensor
Features
- Freshwater use only
- Best for sampling applications
- Field-replaceable
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | 605104 | 1004 ammonium (ISE) sensor, Pro Series | $365.75 | In Stock | ||
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | 003841 | 3841 ammonium standard, 1 mg/L, 500mL | $83.60 | In Stock | ||
 | 003843 | 3843 ammonium standard, 100 mg/L, 500mL | $83.60 | In Stock | ||
When the probe is immersed in water, a potential is established across the membrane that depends on the relative amounts of ammonium in the sample and the internal filling solution. This potential is read relative to the reference electrode of the instrument pH probe. As for all ISEs, there is a linear relationship between the logarithm of the ammonium activity (or concentration in dilute solution) and the observed voltage. The Nernst equation describes this relationship.
- 6-month warranty
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