Staff & Organizational Units > Geochemistry

Geochemistry Facilities and Analytical Equipment

Geochemistry has or has at its disposal the following facilities and equipment:

FACILITIES

Five laboratories housing analytical equipment

Total preparation facilities for crushing and preparing rock samples for chemical analysis

Total preparation facilities for the analysis of water samples using approved methods

Cold laboratory with freezer for storage or work with temperature-sensitive samples

EQUIPMENT

An atomic emission spectrometer utilizing an RF generated argon plasma emission source to detect up to 20 elements simultaneously in the ppm range. The unit has a control computer and software, an autosampler, and a PC for communication and data retrieval.

A JY38 sequential emission spectrometer similar to that above and capable of analyzing elements in the ppb range.

A high performance atomic absorption/ emission spectrometer for use with flame and graphite furnace applications. The instrument is equipped with a computer to control all spectrometer parameters and the analytical methods employed to detect elemental concentrations in the ppb range.

The Dionex DX100 ion chromatograph (IC) allows quantification of ions in solution and includes the ASRS self-regenerating suppressor that minimizes matrix interferences, AS40 Automated Sampler for performing sample injection, and AI-450 software for controlling instrument operation and peak processing.

The sulfur determinator analyzes total sulfur present in solid or liquid samples by high temperature combustion and electronic detection.

The carbon-sulfur determinator analyzes total carbon and total sulfur in solid or liquid samples by combustion in an induction furnace and electronic detection.

The Orion pH/ISE Meter is a digital readout meter which automatically advances for two step calibration and gives extremely accurate determinations of the pH and ion specific concentrations in a sample. It is equipped with an Orion Model 960 autodispenser to make automatic dilutions.

The automated TitraLab 90 system with TimTalk software accommodates either endpoint or inflection point titrations using a very accurate calibrated burette delivery system.

A YSI model 600 XL Multi-Parameter Water Quality Monitor connected to the YSI 610-DM Handheld Logger for use in the field to collect ambient water quality data for temperature, pH, dissolved oxygen, oxidation-reduction potential, and specific conductance.

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