Combination Recording/Iontophoresis Electrode

Combination Recording/Iontophoresis Electrode

Combination Recording/Iontophoresis Electrode

Item# Description U.S. List Price Quantity
69-0521 Combination 7 Barrel Recording/Iontophoresis Electrode Long Taper (Carbostar-7LT), pkg. of 3
69-0520 Combination 7 Barrel Recording/Iontophoresis Electrode Standard Taper (Carbostar-7), pkg. of 3
Login for U.S. Pricing
• Low noise recording


• 6 barrels for micro-iontophoresis injections
The carbon fiber electrode is closely surrounded by 6 fused-together micropipettes allowing combined microiontophoresis and extracellular recording.


Microiontophoresis injection is most often used in conjunction with extracellular recording of neuronal firing. Since extracellular ‘spikes’ generated by action potentials across the membranes of neurons are typically only a few hundred microvolts in amplitude. They require a low noise recording electrode. Traditional electrolyte-filled glass micropipettes in a multibarrel assembly are electrically very noisy. Solid conductor micro-electrodes such as carbon fiber electrodes show significantly less noise in extracellular recordings. Carbon fibers are 5-8 micrometer in diameter are perfect for recording with an excellent signal-to-noise ratio recordings. The Microiontophoresis electrode-pipette assemblies are manufactured from our high quality Harvard-Clark borosilicate capillary tubing. Two standard types of tapers are available: 15 to 25 mm and with a tip length of ~25 mm.
Specifications69-052169-0520
818181
Connector Metric0.8 mm0.8 mm
Impedance at 1 KHz: Carbon Fiber300 to 500 K?300 to 500 K?
Impedance at 1 KHz: Iontophoresis Barrels8 to 10 M?8 to 10 M?
IontophoresisIontophoresisIontophoresis
LLL
Tip Diameter Metric~7 ~7
Tip Length Metric~25 ~25
Tip Taper MetricEither 15 to 25 mm or 25 to 30 mmEither 15 to 25 mm or 25 to 30 mm