Washington State University

School of the Environment

Watershed Lab

Steffen Center


Earth Science/Geology

Peter Hooper GeoAnalytical Lab

The WSU GeoAnalytical Lab has been providing analyses of rocks and minerals to the geologic research community beginning in 1978. We house a Finnigan Neptune and a Finnigan Element2, both with optional laser ablation (New Wave 213 nm) sampling, a Thermo-ARL automated X-ray fluorescence spectrometer (XRF), a Siemens automated X-ray powder diffractometer (XRD), an Agilent inductively coupled plasma mass spectrometer (ICP-MS), a JEOL JXA-8500F field emission electron microprobe/scanning electron microscope, and two automated Finnigan-MAT gas source mass spectrometers.

Our analytical capabilities include bulk rock and mineral elemental analyses for approximately 50 elements, and measurement of nearly any isotopic ratio. We have electron microbeam, microdrilling, and laser ablation sampling options for the analysis of major and trace element concentrations and isotopic ratios at the micro-scale (a few tenths to tens of microns). Our facility includes a large prep lab equipped with grinding media, including an agate planetary ball mill and tungsten carbide and steel ring mills, as well as a large high temperature furnace and diamond polishing equipment. Acid digestions for ICP samples are done in a perchloric rated hood. Solutions for isotopic ratio measurements are extracted in a world-class clean room (HEPA filtered class 1000). Both laser fluorination and gas bench sampling are utilized for light element isotopic measurements.


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Peter Hooper GeoAnalytical Lab
School of the Environment
Webster 1228
Washington State University
Pullman, WA 99164-2812

Fax: 509-335-3700


Dedication to Dr. Peter Hooper (GSA SP497)
Biography of Dr. Peter Hooper

School of the Environment, PO Box 642812, Washington State University, Pullman WA 99164-2812, 509-335-3009, Contact Us
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