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Ion Selective Electrodes ISEPlease contact our sales team for our best possible prices:Phone: +44 (0) 1337 831192 Fax: +44 (0) 1337 371192 email: sales@rmsupply.co.uk
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Do you require the measurement of Ammonium, Nitrate, Fluoride, Cholride, and Calcium in water?
Could the Ion selective electrodes you are currently using be classed as conventional?
If your answer to these questions is positive then the electrodes made by directION may be the solution you’ve been searching for.
The primary benefits and features include:
- No need for a reference electrode
- The negating of a need for filling solution
- An electrode that is completely waterproof and submersible
- Virtually unbreakable
- Solid state sensing
- For field identification a simplistic colour coded cap system
- An electrode that for long periods of time, can be left dry
- Perfect for use by operatives who are unskilled
- An electrode with a long lifespan
Product Description
The electrodes manufactured by directION contain reference elements that negate the need for filling solution or maintenance but still perform exceptionally as solid state sensors.
Fully Submersible
Waterproof and submersible, directION electrodes give field operatives the freedom to take readings from all manner of awkward places such as riverbanks, boats and bridges.
The standard length of cable for our products is 1 metre; a maximum of ten metres however can be requested at time of ordering. A BNC connector is fitted with standard cables.
Laboratory or field use
The table below shows that in terms of technical specification no compromises have been made in the construction of the rugged and waterproof directION electrodes. In both laboratory and field situations the performance of standard Ion selective electrodes is surpassed.
What meter can I use?
The electrodes constructed by directION are compatible with conventional PH meters with millivolt display modes; whether hand held or laboratory based. When ordering, state which connector you require for connection to your equipment.
When ordering, use the chart below that lists our range of Ion Selective Electrodes ISE, (simply quote the relevant order number to our sales team.)
|
ORDER NUMBER |
directION ELECTRODE |
CONCENTRATION RANGE (Mol/L) |
LIMITS (ppm) |
pH RANGE |
TEMP RANGE (°C) |
MAIN INTERFERENCES |
ISAB |
|---|---|---|---|---|---|---|---|
| 3051 | Ammonium (NH4+) | 5 x 10-1 - 5 x 10-5 | 9000 - 0.09 | 1 - 8.6 | 0 - 50 | K+, Na+ | CH3COOH |
| 3061 | Barium (Ba2+) | 10-1 - 10-5 | 1.4 - 13,700 | 3 - 10 | 0 - 50 | Sr2+, K+, Na+ | CuSO4 |
| 3271 | Bromide (Br-) | 100 - 5 x 10-5 | 0.4 - 80,000 | 1 - 12 | 0 - 50 | I-, CN-, S2- | 5M KNO3 |
| 3241 | Cadmium (Cd2+) | 10-1 - 1 x 10-5 | 0.1 - 11,200 | 3 - 7 | 0 - 50 | Hg2+,
Ag+, Cu2+ Pb2+, Fe3+ |
5M KNO3 |
| 3041 | Calcium (Ca2+) | 10-1 - 5 x 10-7 | 4,010 - 0.02 | 3.5 - 11 | 0 - 50 | Ba2+, Al3+, Sr2+ | KCl |
| 3091 | Carbonate (CO32-) | 10-3 - 10-7 | 0.008 - 80 | 6.6 - 9.6 | 0 - 50 | SCN-,
I-, NO3- NO2-, CH3COO- |
NaHCO2 |
| 3261 | Chloride (Cl-) | 100 - 3 x 10-6 | 35,500 - 1 | 1 - 12 | 0 - 50 | I-, Br-, CN-, S2- | 5M KNO3 |
| 3227 | Cupric (Cu2+) | 100 - 1 x 10-7 | 0.008 - 84,000 | 2 - 7 | 0 - 50 | Hg2+,
Ag+, S2- Cl-, Br- |
5M KNO3 |
| 3291 | Cyanide (Cn-) | 10-2 - 1 x 10-5 | 0.03 - 260 | 11 - 13 | 0 - 50 | I-, S2- | 10M NaOH |
| 3221 | Fluoride (F) | 10-1 - 1 x 10-8 | 1,900 - 0.02 | 4 - 8 | 0 - 50 | OH- | TISAB |
| 3281 | Iodide (I-) | 100 - 5 x 10-7 | 0.06 - 127,000 | 2 - 12 | 0 - 50 | CN-, S2- | 5M KNO3 |
| 3231 | Lead (Pb2+) | 10-1 - 1 x 10-5 | 0.2 - 20,800 | 3 - 7 | 0 - 50 | S2-,
Hg2+, Ag+ Cu2+, Fe3+, Cd2+ |
5M NaCIO4 |
| 3261 | Mercury (Hg2+) | 100 - 1 x 10-6 | 0.2 - 201,000 | 0 - 2 | 0 - 50 | Ag+, S2- | 5M NaCIO4 |
| 3021 | Nitrate (NO3-) | 100 - 7 x 10-6 | 62,000 - 0.4 | 2 - 11 | 0 - 50 | CI-, NO2- | 4M (NH4)2SO4 |
| 3061 | Perchlorate (CIO4-) | 100 - 2 x 10-1 | 0.2 - 99,500 | 0 - 11 | 0 - 50 | I-, SCN-, NO3- | CH3COONa |
| 3401 | pH | - | - | 2 - 12 | 5 - 45 | C2H3O4, CIO4- | - |
| 3031 | Potassium (K+) | 100 - 10-5 | 0.04 - 39,000 | 1 - 9 | 0 - 50 | Cs+, NH4+ | 4M KCl |
| 3211 | Silver (Ag+) | 100 - 1 x 10-7 | 0.01 - 107,900 | 1 - 9 | 0 - 50 | S2-, Hg2+ | 5M KNO3 |
| 3315 | Sodium (Na+) | Sat - 10-6 | 1 ppb | 9 - 12 | 0 - 50 | Ag+, NH4+, Li+, K+ | SISAB |
| 3226 | Sulphide (S2-) | 100 - 1 x 10-7 | 0.003 - 32,000 | 13 - 14 | 0 - 50 | Ag+, Hg2+ | 10M NaOH |
| 3228 | Thiocyanate (SCN-) | 10-1 - 2 x 10-6 | 1 - 5,800 | 2 - 12 | 0 - 50 | I-, Cl-, S2- | 5M KNO3 |
| 3100 | Water Hardness |
2 x 10-1 - 5 x 10-5 | - | 4.5 - 10 | 0 - 50 | Ba2+,
Sr2+, Cd2+ Cu2+, Na+, K+, NH4+ |
LiAC |
NOTE:
The directION electrodes shown above are rugged solid state sensors with built-in reference electrodes that do not require any filling solution or maintenance. Sentek also manufacture a comprehensive range of conventional mono ion selective electrodes.
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