Oregon State University solid-source mass spectrometer: a new instrument for research and instruction. Part I: description and system evaluation

Technical Report · Tue Jan 01 00:00:00 EST 1974

OSTI ID:7245788

Senechal, R G; Dasch, E J

This paper describes and explains a heavy isotope laboratory which has been established for the initial purpose of measuring and interpreting the isotopic composition of lead and strontium in deep-sea sediments, and for the application of isotopic methods to many other specific problems in geology and related fields. Previously, the overall analytical uncertainty in many isotope laboratories was greater than the natural isotopic variations that investigators were attempting to measure. Also mass spectrometers required 50 to 100 micrograms of material. This new mass spectrometer has an accuracy better than 0.01 per cent, or 7 parts in 70,000 for a sample of only 2.5 micrograms of strontium. The mass spectrometer described was designed and constructed under the supervision of W.R. Shields at the National Bureau of Standards while Shields was Chief of the Isotopic Analysis Section of the Division of Analytical Chemistry. (GRA)

• Research Organization: Oregon State Univ., Corvallis (USA). Dept. of Geology
• OSTI ID: 7245788
• Report Number(s): PB-247387; TRN: 77-002462
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
LEAD ISOTOPES
ISOTOPE RATIO
MASS SPECTROMETERS
DESIGN
SEDIMENTS
CHEMICAL ANALYSIS
STRONTIUM ISOTOPES
MASS SPECTROSCOPY
SEA BED
ALKALINE EARTH ISOTOPES
ISOTOPES
MEASURING INSTRUMENTS
SPECTROMETERS
SPECTROSCOPY
440300* - Miscellaneous Instruments- (-1989)
400104 - Spectral Procedures- (-1987)