Dri-Ref Reference Electrode, 2 mm

$158
$158

DRIREF-2

Prices valid in USA, Canada, and PR only.

Low electrolyte leakage, stable potential with low resistance

Dri-Ref™ reference electrodes were developed by WPI to have extremely low electrolyte leak­age properties, hence the name “Dri-Ref.” In addition to this key feature, these electrodes exhibit stable and reproducible potential and low resistance. Stored in KCl when not in use, they have a long life expectancy.

Details

Features

  • 2 mm diameter
  • Extremely low electrolyte leakage
  • Stable, reproducible potential with low resistance
  • Chemically resistant to strong acids and bases

Benefits

  • May be used with ion selective electrodes without contamination from the reference electrode

Applications

  • Small volume, low salt concentration measurement (SDR)

May be used with ion selective electrodes

Although the internal filling solution contains KCI, the low fluid leakage means Dri-Ref may be used in combination with ion selective electrodes, including those for K+ and Cl-, without significant contamination from the reference electrode.
The Dri-Ref electrodes are chemically resistant to strong acids and alkalines. Dri-Ref electrodes are not suitable for use in organic solvents. In addition, the long, thin FLEXREF may be easily manipulated to accommodate a difficult experimental setup.

SUPER-Dri-Ref – With a diameter of 2mm, SUPER-Dri-Ref does not leak electrolyte at all. Exhibiting the electrical stability of a classic flow­ing junction reference cell, this electrode exhibits low re­sis­tance and a stable half-cell po­ten­tial es­sen­tial­ly in­de­pen­dent of sample electrolyte concentration. SUPER-Dri-Ref is ideal for small vol­ume and low salt concentration mea­sure­ments.

Micro-Reference Electrode – Only 450 µm in diameter and one inch long, the new DRIREF-450 reference elec­trode can be used along with other sensors in space-restricted areas and very small sam­ple vol­umes.

Luer-Tip Reference – The male luer fitting at the front of the DRIREF-L allows it to be easily connected to a female luer port.

Resources

Dri-Ref-450 Reference Electrode
Dri-Ref Reference Electrodes

Specifications

  DRIREF-450 DRIREF-5 DRIREF-2 FLEXREF SDR DRIREF-L DRIREF-5SH DRIREF-2SH
LENGTH 2.54 cm 9 cm 13 cm 13 cm 9 cm 7.5 cm 3.5 cm 2 cm
DIAMETER 450 µm 4.7 mm 2 mm 1.5 mm 2 mm Standard Luer 4.7 mm 2 mm
CONSTRUCTION Coated Glass Epoxy Isoplast™ Teflon™ PVC Polypropylene Epoxy Isoplast™
RESISTANCE (TYPICAL) < 5 K Ω ~500 Ω ~2.7 KΩ ~2.7 KΩ < 5 KΩ ~500 Ω ~500 Ω ~2.7 KΩ
ELECTROLYTE LEAKAGE (ML/HR) — ~7.4×10⁻⁷  ~5.7×10⁻⁸  ~5.7×10⁻⁸  — 7.4×10⁻⁷ ~7.4×10⁻⁷ ~5.7×10⁻⁸
LEAD LENGTH 30 in. (76 cm)
CONNECTOR  2 mm pin       
Filling Solution  KCl       

 

 

References

J.T. van Dongen, R. G.W. Laan, M. Wouterlood, A.C. Borstlap "Electrodiffusional Uptake of Organic Cations by Pea Seed Coats. Further Evidence for Poorly Selective Pores in the Plasma Membrane of Seed Coat Parenchyma Cells" Plant Physiology 126. 2001: 1688-1697
Dri-Ref Reference Electrode, 2 mm

$158.00

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    Dri-Ref™ reference electrodes were developed by WPI to have extremely low electrolyte leakage properties, hence the name “Dri-Ref.” In addition to this key feature, these electrodes exhibit stable and reproducible potential and low resistance. Stored in KCl when not in use, they have a long life expectancy. Low leakage is achieved by using KONBO™, a product combining modern ceramic and conductive polymer technology, as the liquid junction. Electrode resistance is low, an important consideration when making low-noise measurements.