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Ion Selective Electrodes

Kwik-Tip Ion Selective Electrodes

The WPI Kwik-Tip ion-selective electrodes allow the determination of calcium, hydrogen, potassium and TPP ion concentrations with a conventional pH meter.

Kwik-Tip electrodes for precise calcium, hydrogen, potassium, and TPP tests.

Key Features

  • Quick, precise, and economical
  • Outstanding, reliable PVC membrane
  • Quick reaction
  • Two millimeter tips
  • Changeable tip holder
  • Three electrode tips and a MicroFil filling syringe are included in each set

Kwik-Tip electrode

Benefits

  • Reasonably priced
  • Use to assess different ions in biological medium

Applications

  • Detection of ions in biological applications, whether in vivo or in vitro

These extremely stable electrodes accurately monitor the activity of the TPP (tetraphenylphosphonium), hydrogen, potassium, and calcium ions. Tips are made of 2 mm diameter plastic tubes that are ion-sensitive membran­e-sealed at one end. You can insert the tube into the hold­er and connect it to a pH meter after filling with electrolyte solution. Because tips and hold­ers may be swapped, one tip that is sensitive to one ion can be replaced with another. A new tip may be installed in about a minute. When properly kept in a saline solution, electrode tips typically remain usable for several months. Only the tip needs to be replaced when replacement is required.

Kwik-Tip electrodes are sold separately as well as in kits. Three detachable tips and a reusable holder are included in each "KWIK" electrode holder kit. The "TIP" Electrode Kits include with a 4-foot BNC cable, an electrolyte filling syringe, and three electrode tips for different ions. It is also necessary to use a different ref­er­ence electrode, like the Dri-Ref™ from WPI.

Moreover, you need Part 3508 (BNC-to-US pH Standard adapter) if your pH meter needs a US Standard connector.

 

  Electrode
Color Code
Filling Solution
Min. Slope/Decade
Concentration Range
Selectivity Coeffiecients (-log)
TIPCA
Calcium Green 0.1M CaCl2 28mV 0.1 - 10-6.75M Na+ 5.5, K5.4, Mg++ 4.9
TIPH
Hydrogen Orange 1M Citric acid, 0.01M NaCl, pH 5.6 54mV pH 5.0-12 Na+ 10.4, K9.8, Ca++ 11.1
TIPK
Potassium Yellow 0.1M KCl 54mV 0.1 - 10-4.5M Na+ 4.0, Ca++ 3.9, Mg++3.0
TIPTPP
TPP+ Purple 10mM TPP+ 54mV 0.001 - 10-4M K6.0

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