A quadrupole-based mass spectrometric system for the determination of noble gas abundances in fluids

Citation:
Kulongoski, JT, Hilton DR.  2002.  A quadrupole-based mass spectrometric system for the determination of noble gas abundances in fluids. Geochemistry Geophysics Geosystems. 3

Date Published:

Jun

Keywords:

1094 geochemistry, 1806 hydrology, 1894, chemistry of, crustal, fresh water, groundwater, he-4, helium, hydrology, instruments and techniques, isotope dilution, mass spectrometer, noble gas, paleothermometry, quadrupole, seawater, solubility, water, Xenon

Abstract:

[1] We present details of the operation and performance of a quadrupole mass spectrometer-based system developed for the extraction, separation, and high-precision measurement of noble gases dissolved in fluid samples. The relatively inexpensive quadrupole mass spectrometer system, employed with the isotope dilution technique, achieves a precision for He, Ne, Ar, Kr, and Xe abundances of +/-0.4%, +/-0.7%, +/-0.1%, +/-0.8%, and +/-0.9% respectively, as determined from analyses of mixed spike-air aliquots. The system has an overall accuracy of +/-0.6degreesC on the noble gas temperature of a water sample, as determined by analyses of water samples air-equilibrated under controlled conditions. We describe improvements in calibration procedures and sample processing protocols that have led to these high-quality measurements.

Notes:

n/a

Website

DOI:

10.1029/2001gc000267

Scripps Publication ID:

1032