pH Solution & Electrodes
Make sure you've got all the tools needed for pH meter calibration and safe storage with our selection of pH solutions, including buffer solutions. We also stock a range of replacement pH electrodes for when electrodes are damaged or degraded.
Find out more about pH Solution & Electrodes below.
- Buffer solution rated to 7.00pH
- Used for calibrating pH meters
- 100ml per bottle
- Includes 10 packs
- No messy powder reagents
- Dosing equipment is not required
- Replacement probe for 8100 Plus pH kit
- Lumberg connector
- 1m lead
- 4pH buffer solution
- Pint-size plastic bottles
- 84°S conductivity standard
- Pint-size plastic bottles
- 1413°S conductivity standard
- Pint-size plastic bottles
- 7pH buffer solution
- Pint-size plastic bottles
- Interchangeable with ExStik Chlorine or ORP meters
- Measures in liquids, semisolids, and solids
- ATC via built-in Pt-100Ohm sensor
- 10pH buffer solution
- Pint-size plastic bottles
- Easy to use
- 6ea. of 4, 7, 10pH plus 2 Rinsing solutions
- Convenient pouch
- 0 to 14pH range
- 0 to 80°C operating temperature
- Includes 39" (1m) cable with BNC connector
- Easy to clean
- Protective connector cap
- ATC via built-in Pt-100Ohm sensor
- Easy to clean, rugged flat surface
- Measures in liquids, semisolids, and solids
- ATC via built-in Pt-100Ohm sensor
- 0 to 14pH range
- 0 to 80°C operating temperature
- Includes 39" (1m) cable with BNC connector
- 0 to 14pH range
- 0 to 80°C operating temperature
- Includes 39" (1m) cable
- 1ppm standard
- 3 ampules (20mL each)
- Compatible with DO700 & PH300
- 9-in-1 Portable Dissolved Oxygen Meter
- 3-in-1 Portable pH/mV/Temperature Meter
- 6 screw-on membrane caps
- 15ml filling solution
- Polishing paper
- Easy to clean
- Interchangeable with ExStik Chlorine or ORP meters
- ATC via built-in Pt-100Ohm sensor
- Compatible with Extech EC500 Waterproof ExStik® II pH/ Conductivity Meter
- Measures conductivity, TDS, salinity, pH, and temperature
- Features a built-in Pt-100Ω sensor
- Compatible with DO700 & EC600
- 9-in-1 Portable Dissolved Oxygen Meter
- 7-in-1 Portable Water Conductivity Meter
- Easy to clean
- Measures Chlorine and Temperature
- Interchangeable with ExStik pH or ORP Meter
- Protective connector cap
- Includes 100 packs
- No messy powder reagents
- Dosing equipment is not required
- 0 to 14pH range
- 5 to 80°C operating temperature
- Includes 39" (1m) cable with BNC connector
About pH Solution & Electrodes
When using a pH meter it is incredibly important to maintain the device's electrode via the use of buffer solutions. Not doing so will lead to the efficiency of the electrode deteriorating at a much quicker rate, leading to it having to be replaced more often.
It is also common practice to perform pH meter calibration before each testing procedure - this enables the user to check that the electrode is functioning correctly and that the result gained during the real testing procedure will be accurate. Not doing so can be a significant danger, as an incorrect reading taken using an uncalibrated could leave the target substance with high acid/alkali levels that shouldn't be present.
Sample pH solutions are used commonly during these calibration procedures to check that the tester is working correctly. Before this is done the probe of the pH meter should be thoroughly rinsed using a special rinse solution, and then it should be immersed into the sample solution, stirring gently to create a homogenous sample. The reading should then be accurate to the solution used and if so, the meter is calibrated correctly.
Sample pH solutions are often referred to as buffer solutions, and they are designed to resist sudden changes in pH, making them perfect for calibration purposes. The buffer solution can differ in pH, so choosing the right one for your testing needs is important. There are also buffer solutions created for specific pH types, such as chlorine.
It is also good practice to rinse electrodes before testing actual solutions as well - not doing so could lead to contamination and inaccurate readings being taken.
