How to Make 0.1M Copper II Chloride

In this video, WPI Chemist Nikki Scafa demonstrates how to make a 0.1M solution of CuCl2 for calibrating WPI NO microsensors.

How To Test Your EVOM2 Meter

The World Precision Instruments (WPI) EVOM2 is used for making trans epithelial electrical resistance (or TEER) measurements. We recommend that you test your EVOM2 before you use it for the first time and then periodically after that. If there is a concern that the meter or the electrode is not functioning properly, test the meter first. This video shows how to test the meter.

How to Fill a 2 mm Sensor Sleeve with Filling Solution

In this video, Nikki demonstrates how to prepare and fill a 2mm biosensor and prepare to calibrate an ISO-OXY-2 oxygen sensor. 

How to Calibrate an ISO-HPO100

In this video, WPI Chemist Nikki Scafa demonstrates how to calibrate the WPI ISO-HPO100 hydrogen peroxide microsensor. 

EVOM2-How to Equilibrate Your STX2

The World Precision Instruments (WPI) EVOM2 is used for making trans epithelial electrical resistance (or TEER) measurements. Two silver/silver chloride pellets are used for the electrodes. The chloride ion tends to migrate, which is a reversible reaction. But, because of this chloride ion swapping, the electrodes need to be polarized before each use. Before using the meter for making voltage measurements, equilibrate the electrodes. This video shows you how.