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Title: Manifold and method of batch measurement of Hg-196 concentration using a mass spectrometer

Abstract

A sample manifold and method of its use has been developed so that milligram quantities of mercury can be analyzed mass spectroscopically to determine the .sup.196 Hg concentration to less than 0.02 atomic percent. Using natural mercury as a standard, accuracy of .+-.0.002 atomic percent can be obtained. The mass spectrometer preferably used is a commercially available GC/MS manufactured by Hewlett Packard. A novel sample manifold is contained within an oven allowing flow rate control of Hg into the MS. Another part of the manifold connects to an auxiliary pumping system which facilitates rapid clean up of residual Hg in the manifold. Sample cycle time is about 1 hour.

Inventors:
 [1];  [2]
  1. Belmont, MA
  2. N. Hampton, NH
Issue Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
OSTI Identifier:
868077
Patent Number(s):
5068533
Assignee:
GTE Products Corporation (Danvers, MA)
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
manifold; method; batch; measurement; hg-196; concentration; mass; spectrometer; sample; developed; milligram; quantities; mercury; analyzed; spectroscopically; determine; 196; hg; 02; atomic; percent; natural; standard; accuracy; 002; obtained; preferably; commercially; available; gc; manufactured; hewlett; packard; novel; contained; oven; allowing; flow; rate; control; connects; auxiliary; pumping; facilitates; rapid; clean; residual; cycle; time; hour; atomic percent; mass spectrometer; flow rate; commercially available; rate control; mass spectroscopic; cycle time; manifold connects; /250/

Citation Formats

Grossman, Mark W, and Evans, Roger. Manifold and method of batch measurement of Hg-196 concentration using a mass spectrometer. United States: N. p., 1991. Web.
Grossman, Mark W, & Evans, Roger. Manifold and method of batch measurement of Hg-196 concentration using a mass spectrometer. United States.
Grossman, Mark W, and Evans, Roger. Tue . "Manifold and method of batch measurement of Hg-196 concentration using a mass spectrometer". United States. https://www.osti.gov/servlets/purl/868077.
@article{osti_868077,
title = {Manifold and method of batch measurement of Hg-196 concentration using a mass spectrometer},
author = {Grossman, Mark W and Evans, Roger},
abstractNote = {A sample manifold and method of its use has been developed so that milligram quantities of mercury can be analyzed mass spectroscopically to determine the .sup.196 Hg concentration to less than 0.02 atomic percent. Using natural mercury as a standard, accuracy of .+-.0.002 atomic percent can be obtained. The mass spectrometer preferably used is a commercially available GC/MS manufactured by Hewlett Packard. A novel sample manifold is contained within an oven allowing flow rate control of Hg into the MS. Another part of the manifold connects to an auxiliary pumping system which facilitates rapid clean up of residual Hg in the manifold. Sample cycle time is about 1 hour.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}

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