Within the Department of Chemistry, the undergraduate courses focus much of their energy providing hands-on research experience for the students. One of the many teaching labs offers students the opportunity to perform salt-bridge analyses to monitor millivolt change. In order to do this, the lab had to use several types of equipment, including small, low end pH sticks. With over 4,000 chemistry students in and out of the lab each quarter, these sticks were not lasting very long. In addition, they were very inaccurate, which caused the students to continually miss the mark in experiments they performed. When a METTLER TOLEDO sales representative heard of the situation, he presented the lab manager with the opportunity to learn more about our state-of-the-art S20U University pH meter.
The S20U was designed specifically for college and university laboratories. The S20U is very intuitive and easy-to-use, eliminating the learning curve so students can focus on the experiment at hand. Protected by a rugged polymer shaft, the S20U electrode, the InLab 404®, withstands the roughest of treatment and can handle a multitude of samples. In addition, the electrode stand with adjustable arm are conducive to taking pH readings in many different beakers and flasks, as well as adding flexibility by allowing the meter to be used by left and right handed students.
The Lab manager was so pleased with the performance of the meter, that he purchased 250 units for his undergraduate testing labs. Now his students are not only able obtain accurate pH measurements, but the meter allows for the accurate testing of temperature and millivolts. The lab manager was also pleased to know that his students could reduce the size of their samples from 40 milliliters to 2 milliliters. This has significantly reduced waste and provided several cost-saving benefits. The chemistry department has been able to get rid of older equipment because the S20 has fully integrated all of their testing needs.
