Trio Presents Research at Symposium

Project seeks to eliminate errors, inefficiencies in infrared spectrometry processes.  


Alexander Raubach ’10, Aneliese Apala ’11, and Sara Goldstein ’11 presented a poster, “Elimination of the Sample Cell in Infrared Spectrophotometry” at the Symposium for Artists & Scholars on April 17, 2009 at Randolph College.

The group conducted the research project with their faculty mentor, Bill Mattson, professor of chemistry, while undergraduate students at Randolph College.

An abstract of the project follows...

One of the most serious limitations of infrared spectrophotometry is sample handling. Solvents and sample cell materials are neither completely transparent to infrared radiation nor totally unreactive with the sample, creating limitations in qualitative and even quantitative analysis. In addition, sample handling is both difficult and time consuming. The goal of this research is to eliminate the need for a sample cell. To accomplish this, samples are introduced into the optical path as a very fine mist, using a nebulizer. The samples are then removed using a vacuum and directed air flow. Thus, two important goals are accomplished: the sample cell is eliminated, and the ability to introduce different samples on an almost continuous basis is achieved. Preliminary results are encouraging.

The Student Symposium of Artists and Scholars provides Randolph College students from all classes and disciplines the opportunity to present the results of their research, scholarship, and creative work to the entire College community and beyond.

The two-day symposium, modeled after a typical academic conference, features oral presentations of student research, readings of creative work, musical performances, and exhibitions of student artwork. The symposium also includes a poster session, reception and a keynote address from a noteworthy academic speaker.

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