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Product description
Matching reference electrode type 217 reference electrode (second KNO saturated salt bridge filling3)
total ionic strength adjustment bufferNaNO3
Activating solution10-3Mol/LTheKCN
Using steps
1,The electrodes need to be used before they are used10-3Mol/LImmersion in a standard solution2Hours above.
2,Connect the electrode and the matching reference electrode to the instrument, unscrew and remove the electrode protection bottle and the electrode cap.
3,Use an electromagnetic mixer to clean the electrodes in deionized water10minAbove
4,Correction electrode: test the electrode potential from dilute to concentrated at two or more concentrations of ionic standard solution and record. according to
RecordedMVValue andPHValue (the negative value of the ion concentration), plotting the electrode"MV-PXStandard curve.
Note: equal amounts of ionic strength regulators are required in standard solutions and measurement solutions.
5,Samples were measured using electrodes and recordedMVValues are read on the standard graphpXValue and then sample
Calculation of ion concentration.
Note: users using an ion meter do not need to draw standard curves and operate according to the instructions.
Save steps
After use, wash and blot out the moisture on the electrode surface. Put the protective cover on the surface and put it back in the packing box.
Matters needing attention
1,In order to ensure the accuracy of the measurement, the temperature, ionic strength and stirring speed should be consistent in the electrode calibration and measurement.
Before changing the sample, the end of the electrode should be cleaned sufficiently, and the residual water traces can be dried to avoid cross contamination between the samples.
2,The average concentration of the selected ionic standard solutions is different from each other10Times and should contain the ionic concentration of the sample being tested.
Other matters
2,If th