THE MEASUREMENT OF THE ABUNDANCE RATIO OF LITHIUM ISOTOPES USING ATLAS CH 4 MASS-SPECTROMETER

Journal Article · Mon Oct 01 04:00:00 EDT 1962 · Shitsuryo Bunseki (Japan)

OSTI ID:4099406

Mori, Y; Nomura, T

One drop of 200 mg/ml LiI solution is deposited in the ionization case. Under conditions such that the max peaks of Li/sup 7/ and Li/sup 6/ can be obtained, the peaks due to these isotopes are recorded repeatedly. More than 20 measured values of the abundance ratio in the region around the point on which the ionization current reaches a max are determined, and their average value is assumed as the (true) abundance ratio of the sample used. In order to investigate the difference of anions in the sample, LiCl, LiI, LiNO/sub 3/, and Li/sub 2/SO/sub 4/ were used, and LiI was found to be most suitable. The measured value of the abundance ratio varies according to the type of the ionization case and conditions of the determination. The effect of ionization current is large, and, generally, the measured value of the abundance ratio increases with increasing heating current. The amount of sample, the spotting point, and the measuring time must be constant. In the measurement of relative value, the error is checked within plus or minus 0.1%. (Nucl. Sci. Abstr. Japan, Vol. 2, No. 4)

• Research Organization: Tokyo Inst. of Tech.
• NSA Number: NSA-18-008311
• OSTI ID: 4099406
• Journal Information: Shitsuryo Bunseki (Japan), Journal Name: Shitsuryo Bunseki (Japan) Vol. Vol: 10; ISSN SHIBA
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

CHEMISTRY
EFFICIENCY
IONIZATION
LITHIUM 6
LITHIUM 7
LITHIUM CHLORIDES
LITHIUM IODIDES
LITHIUM ISOTOPES
LITHIUM NITRATES
LITHIUM SULFATES
MASS SPECTROMETERS
QUANTITATIVE ANALYSIS
QUANTITY RATIO