An analytical chemistry laboratory (~1500 sq.ft.) housed in the new chemistry building, a soil physics laboratory (~1500 sq. ft.) housed in Funchess Hall and a subsurface restoration laboratory (~2000 sq. ft.) housed in the Nuclear Science Center are available for experimental work.

The analytical chemistry laboratories dedicated to this work are well equipped with all the instrumentation necessary for complete analysis. This instrumentation includes a Shimadzu GC-14A gas chromatograph equipped with a flame ionization detector, an electron capture detector (for very low concentrations of halocarbon compounds), both narrow and wide bore capillary columns, a Shimadzu AOC-17 automatic injector, and a Shimadzu CR501 data station.

This laboratory also contains a Shimadzu LC-10A high pressure liquid chromatograph equipped with a Shimadzu SPD-10AV variable wave length detector that allows dual wavelength detection, a Shimadzu RID-6A refractive index detector, a Shimadzu SIL-10A automatic injector and a Shimadzu FRC-10A fraction collector under computer control. This instrument is capable of both isocratic and gradient elution work. Complete ion selective electrode capabilities are also available in these laboratories.

Complete multinuclear variable temperature nuclear magnetic resonance spectroscopy is available on a Bruker 250 MHz or a Bruker 400 MHz instrument. The PI's have immediate and unlimited access to these instruments. Several Fourier transform infrared spectrophotometers are available in the Chemistry Department and UV/VIS/Near IR spectra in both solution and the solid state can be determined. Atomic absorption is also available for metals analysis.

A VG Trio 2000 quadrupolar mass spectrometer equipped with a gas chromatograph and a solids inlet probe is also available. An electrospray apparatus for this mass spectrometer has been purchased by this group. This apparatus allows us to examine aqueous solutions containing ionic species (both positive and negative ions). If no ions exist in solution, addition of very small amounts of acid will protonate basic sites (ether oxygens, OH groups, etc.) Additional mass spectrometry facilities are available. The University Mass Spectrometry Laboratory is located in the Chemistry Building where Dr. Hill's laboratories are located. This laboratory is equipped with a VG 7070 EHF electric sector mass spectrometer that has the capability of doing fast atom bombardment (FAB) and desorption chemical ionization (DCI) as well as the conventional electron impact (EI) and chemical ionization (CI). This instrument is interfaced with a gas chromatograph and has liquid, solids, or gas inlet ports.

The Soil Physics Laboratory is extremely well equipped to determine pertinent transport parameters for almost any kind of porous medium flow system. The highlights are two fully automated 2-dimensional dual-energy gamma radiation systems, each of which can be used to simultaneously determine (i) the bulk density of a porous medium and its volumetric liquid content, (ii) the volumetric liquid contents of 2 immiscible liquids in a rigid porous medium, or (iii) the volumetric liquid content and the concentration of a dissolved chemical. The provision of 2-dimensional movement of the gamma system sources and the detector allow non-intrusive measurements to be taken at any location in a 2-dimensional flow system.

In addition to determining the liquid contents in a porous medium with the gamma system, automated measurement of the liquid pressures, during both saturated and unsaturated conditions and for both water and NAPLs, can be made with tensiometers connected to pressure transducers.

The Subsurface Restoration Laboratory contains a number of flow containers including large boxes for 2-D and 3-D flow studies. Flow visualization can be observed and photographed from these boxes and samples can be extracted for analysis. One of the boxes is constructed with Teflon and glass so that solvents will not attack the construction materials and this box is surrounded by a hood so that toxic volatile chemicals can be studied on a large scale. Batch studies and column studies are also carried out in this laboratory.

Auburn University provides a glass shop with a full-time glass blower, a machine shop and an electronics shop and a computer repair shop all adequately staffed.