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– The solution helps stabilize the ionic strength in the sample and standard solution.
– Used for ion selective electrodes measuring nitrate.
– Very necessary when measuring nitrate.
HI4013-00 is a nitrate ion strength adjustment (ISA) solution for use with nitrate ion selective electrodes (ISEs). Hanna ISA solutions are used to fix the ionic strength of the sample and the standard solutions so that both are constant. Without the addition of ISA, the ion selective electrode will measure ion activity resulting in inaccurate readings; in addition, ISA stabilizes the ionic strength and allows measurement as ion concentration. With some ISEs, ISA solutions are also used to adjust the pH solution or to remove any potential interferences from competing ions present.
The importance of ISA solution*
- Adjust the ion activity to be constant so that the concentration can be determined.
- Adjusting the pH of the solution is necessary for some ISEs
- Complexes interfere with ions in a sample to allow measurement of free ions
* If an ISA solution is used with a sample, it must be used with the calibration solutions in equal proportions.
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment
Hanna experimental measuring equipment