Warren Wilson College

The Chemistry Department is fortunate to have powerful, modern instrumentation that was funded partly by a generous gift from J. Houston Witherspoon. Students use these instruments early in their academic careers and acquire valuable hands-on experience. The most important instruments are shown below.

Infrared Spectrometer (IR)

A replacement Infrared Spectrometer is our newest instrumental acquisition. A MIDAC FT-IR replaces an older dispersive instrument that served us for years. Included with this FT-IR acquisition were a total reflectance cell and a 16 meter path length gas cell for doing green house gases.

Inductively Coupled Plasma Mass Spectrometer (ICP)

A Perkin Elmer Optima 3100 XL ICP contenues to be a work horse for multi-element environmental research by our students. It is also used by students in Analytical and other classes.

Gas Chromatograph/Mass Spectrometer (GC/MS)

The Shimadzu Gas Chromatograph/Mass Spectrometer (GC/MS) is used to separate mixtures and to characterize each component in the mixture. The mixture is separated in the gas chromatograph while the mass spectrometer characterizes each compound as it exits the gc. Sophomores in Organic Chemistry and Analytical Chemistry as well as juniors and seniors conducting undergraduate research use this instrument.

Nuclear Magnetic Resonance Spectrophotometer (NMR)

An Anaszi 60 MHz Nuclear Magnetic Resonance Spectrophotometer with a C/H is capable of plus sequence and 2D analysis. The instrument is a Fourier Transform (FTNMR) that can be used to obtain proton or C13 spectra. ALthough this NMR lacks the field dispersion of a super conducting magnet it provide access to modern NMR techniques without the high cost of cryogens. This NMR is used by sophomores in Organic Chemistry and Analytical Chemistry.

Gas Chromatograph (GC)

Our two gas chromatographs are controlled by a central data system. One has two separate detectors: a Flame Ionization Detector (FID) and an Electron Capture Detector (ECD). It is used in a variety of classes including Organic Chemistry and Analytical Chemistry. In addition, the instruments are used for undergraduate research to accurately measure greenhouse gases, bacterial fatty acids, and PCBs. Content

High Performance Liquid Chromatographs (HPLC)

The Department has two high performance chromatographs:(1) a SP8800 Spectra Physics pump with a Waters 490E Detetector and (2) a Shimadzu LC-10AT Pump with a RF-10A Fluorescence Detector and a SPD-10AV uv/vis Detector. These instruments are used by sophomores in Analytical Chemistry and Organic Chemistry as well as advanced students conducting undergraduate research.

Atomic Absorption Spectrophotometer (AA)

The Buck Model 200 Atomic Absorption Spectrophotometer (AA) is used to measure the concentration of metals such as lead, mercury, zinc and iron. First Year Students use this instrument to measure the amount of lead in soil that has been contaminated by lead paint.