FTIR spectrometer and microscope with infrared polarizer
James Madison Universityhttp://educ.jmu.edu//~johns2ea/laboratory.htm
Thermo-Nicolet Magna 760 FTIR spectrometer and Nic-plan microscope with custom polarizer
Mineral structure (atomic)
Transmission spectroscopy of the mid-IR region (~1000-6000 cm-1). Quantification and characterization of polarized spot analyses (down to ~30 um) of hydrous species in nominally anhydrous minerals. Unpolarized measurements of H2O and CO2 in melt inclusions for quantification. Possible reflectance or transmission measurements for structural modes of some minerals. The instrument has an ATR (attenuated total reflectance) attachment for the microscope, but the visitor would need expertise with this option.
Conditions for Use:
Visitors are invited to work in the lab to work with lab personnel Visitors are invited to work in the lab to design and do the work yourself
There is no charge for use; the limiting factor is the schedule of the operator.
Priority will be given to regional users (near or in Virginia) and those who are willing to collaborate with the operator.
Potential users should contact me for discussion of sample preparation - for transmission spectroscopy, free-standing thick sections must be prepared.
Standard Collections/Lab Blanks:
The Nicolet software can integrate band areas and subtract baseline.
- Class demonstrations are available for undergraduates
- Class demonstrations are available for K-12
Support provided by:
Funding for refurbishment of this instrument was provided by the Jeffress Foundation.