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Dr. Bob's Cell is an electrochemical cell kit designed
for flexibility and convenience. It's built to handle sample volumes
from 1-30 mL. It's available in both (1) an unjacketed model and (2) a jacketed version to control the temperature of the
electrochemical experiment.
A photo of Dr. Bob's Cell is shown below. The pear-shaped flask is
the key to handling low volumes. There are five ports: two
14/20 ground-glass joints and three #7 Ace-Threds. The Working
Electrode, the Reference Electrode Bridge Tube, the Counter Electrode
Bridge Tube, and the Bubbler are all contained in the Ace-Threds, which
allow them to be adjusted vertically to accommodate a wide range of sample
volumes. The Bubbler has one position for deaeration and another for
blanketing. The Counter Electrode is a Platinum wire that is
contained in a bridge tube isolated from the sample electrolyte with a
Vycor fit. This arrangement prevents products from the counter
electrode contacting products from the working electrode.
Working Electrodes are available in Platinum, Glassy Carbon, and
Gold. They may be obtained in either a macro version with a 3 mm
diameter or as a microelectrode with a 10 micron diameter. The macro
electrodes have a Kel-F body and each electrode is tested prior to
shipment by running a cyclic voltammogram on a ferricyanide sample.
We include a 2 x 6 mm Teflon® Spin Bar with the Dr. Bob's Cell. |
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We know what you're thinking...OK, Gamry, nice design and all that and the
pear-shaped flask is good for small volumes, but it's going to be really
annoying working with it because it won't stay upright. Au
contraire, Mon Ami. We also designed the very clever
cell stand in the photo below.
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