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Vibrating probe density meter for determination of atom percent deuterium in lithium hydride-lithium deuteride mixtures

Journal Article · · Anal. Chem.; (United States)
DOI:https://doi.org/10.1021/ac00225a027· OSTI ID:6700058
; ;
Atom percent deuterium in lithium hydride-lithium deuteride (LiH/LiD) mixtures are determined from the density of a water-heavy water mixture obtained by the decomposition and oxidation of samples. The density is measured by using a vibrating tube density meter which requires to LiH/LiD standards, only pure water and air or other density standards. The samples are decomposed in a Leco induction furnace, converted to the correponding oxides, and condensed in a specially designed cold trap fabricated for efficient entrapment without contact with atmospheric water vapor. A vibrating probe density meter determines the density of the water-heavy water mixture; the density is proportional to the atom percent deuterium in the LiH/LiD sample. At the 95% confidence level, the atom percent dueterium is determined with a precision of less than 0.2% (relative standard deviation) for a single determination. By use of two Leco induction furnaces and one vibrational probe density meter, 18 samples per 8-h shift can be analyzed.
Research Organization:
Oak Ridge Y-12 Plant, TN
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
6700058
Journal Information:
Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 53:2; ISSN ANCHA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
ALKALI METAL COMPOUNDS
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DECOMPOSITION
DENSITY
DESIGN
DEUTERIDES
DEUTERIUM
DEUTERIUM COMPOUNDS
DISPERSIONS
ELECTRIC FURNACES
ELEMENTS
EQUIPMENT
FURNACES
HEAVY WATER
HYDRIDES
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INDUCTION FURNACES
ISOTOPE RATIO
ISOTOPES
LIGHT NUCLEI
LITHIUM COMPOUNDS
LITHIUM DEUTERIDES
LITHIUM HYDRIDES
MAGNETIC RESONANCE
MASS SPECTROSCOPY
MEASURING INSTRUMENTS
METERS
MIXTURES
NONMETALS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-ODD NUCLEI
OXIDATION
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RESONANCE
SPECTROSCOPY
STABLE ISOTOPES
WATER