TTU Home Department of Geosciences

TTU GeoAnalytical Laboratory Instruments

Introduction | Contact | Calendar | Instruments
Downloads | Services and Fees (.pdf) | Related Links

ICP-AES

TTU ICP-AES

The TTU GeoAnalytical Laboratory purchased a new Prodigy High Dispersion ICP-AES from Leeman Labs in early 2011. The ICP-AES can analyze concentrated aqueous solutions (as high as 3% total disolved solids). The TTU ICP-AES regularly analyzes whole rock samples for major elements (SiO2, TiO2, Al2O3, Fe2O3, MnO, MgO, CaO, Na2O, K2O, P2O5) and trace elements (Ba, Rb, Sr, Zr, Y, Sc, V, Ni, Cr, Cu, Zn, Nb, Be). We also commonly analyze environmental samples (water and soil), and biological samples (kidney, liver, urine, etc) for typical EPA metals including Cu, Zn, Fe, Mn, Co, Sr, Mg, Ni, Cr, Cd, Mo, As, Pb, and alkalies.

(LA) ICP-MS

TTU LA-ICP-MS

In 2006 we announced the acquisition of an Agilent 7500cs inductively coupled plasma quadrupole mass spectrometer (ICP-MS) and a New Wave UP213 Nd:YAG laser system. The laser ablation sampling system can be used in conjunction with the ICP-MS to study a wide range of solid materials. In situ investigations can be made of the chemical compositions of minerals, natural glasses, fused whole rock glasses, and compositional zoning within individual mineral crystals. The ICP-MS makes possible the study of trace element concentrations in a variety of biological materials including otoliths (fish ear bones), bird feathers, and tissues.

When used in conjunction with our Agilent ASX-500 autosampler as the sample introduction system, the ICP-MS can be employed to do ppb level analyses for dilute (<2000 ppm total dissolved solids) aqueous samples. Elements that can be analyzed are included in the figure below with detection limits as reported by Agilent Technologies.

M4 Fluxer
TTU M4 Fluxer

Aqueous samples for whole rock analyses and disks for laser work are prepared in platinum crucibles using the M4 Fluxer.