Electrode - Reference

Electrode - Reference

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Electrochemical measurements, including those taken using pH probes, Oxidation/Reduction Potential (ORP) probes, Ion Selective Electrodes (ISEs), and Electrolytic Conductance (EC) probes, primarily rely on potentiometry. In potentiometric measurements, the probe detects a potential in millivolts (mV), which can be directly reported as the measurement result (as with ORP), or used to calculate the final result through a calibration process (as with pH and ISE).

The mV reading in electrochemical measurements can be affected by several factors, with the reference system being particularly important. To address any variations in mV measurements due to differences in reference systems, the potential is often reported with respect to the Standard Hydrogen Electrode (SHE), which is the standard against which all other reference systems are compared. Even if all other variables are constant and two probes are reading identically to theoretical, an identical sample would give different mV readings on different probes with different reference systems. If the potential vs. SHE for two probes with different reference systems is known, the mV results can be compared on the same relative scale. Additionally, if the potential vs. SHE is known for a probe and the mV reading on a standard with SHE is also known, the probe's reading on that same standard can be easily calculated.
QM710X

Glass reference electrode, refillable, Ag/AgCl, 12x120mm

QM710X
QM711X

Epoxy reference electrode, refillable, Ag/AgCl, 12x120mm

QM711X

Epoxy gel reference electrode, Ag/AgCl, 12x120mm

QM711X-GEL
QM712X

Epoxy refillable reference electrode, Double Junction Calomel, 12x120mm

QM712X

Epoxy refillable reference electrode, Double Junction Calomel, 8x100mm

QM712X-8X100M
QM713X

Glass refillable reference electrode, Double Junction Ag/AgCl, 12x120mm

QM713X

Glass refillable reference electrode, Double Junction Ag/AgCl, 8x100mm

QM713X-8X100MM
QM714X

Epoxy refillable reference electrode, Double Junction Ag/AgCl, 12x120mm

QM714X
QM715X-4X50-CF

Tube, Glass, Ø12mm x 120mm, PTFE Junction

QM715X-12X120-PTFE
QM715X-4X50-CF

Glass tube, Ceramic Frit, 4x100mm

QM715X-4X100-CF
QM715X-4X50-CF

Glass tube, Ceramic Frit, 4x50mm

QM715X-4X50-CF
QM715X-4X50-CF

Glass tube, Ceramic Frit, 6x60mm

QM715X-6X60-CF
qm716x_hr

Glass refillable reference electrode, Ag/AgCl, 6x50mm

QM716X
QM716X-1-5X100

Glass refillable reference electrode, Ag/AgCl, 1,5x100mm

QM716X-1-5X100
qm716x_hr

Glass refillable reference electrode, Ag/AgCl, 6x100mm

QM716X-6x100MM
qm720x_hr

Glass refillable reference electrode, Ag/AgCl, 12x200mm

QM720X
qm730x_hr

Glass refillable reference electrode, Sleeve, NS14.5, Ag/AgCl, 12x145mm

QM730X
qm750x_hr

Glass, gel, Ag/AgCl, 12x260mm, S8

QM750X

Lithiumacetate fill solution (LiAC), 100mL

QS930X

Lithiumchloride fill solution (LiCl), 100mL

QS931X
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