NEUTRON ACTIVATION ANALYSIS OF MERCURY, COPPER AND ARSENIC IN MARINE ORGANISMS

Journal Article · Wed Jun 01 04:00:00 EDT 1960 · J. Atomic Energy Soc. Japan

DOI:https://doi.org/10.3327/jaesj.2.317· OSTI ID:4181957

Hamaguchi, H; Kuroda, R; Hosohara, K

The mercury, copper, and arsenic contents of some marine organisms were determined by neutron activation. The irradiations were carried out in JRR-1 reactor, with neutron fluxes of about 3 x 10/sup 11/ n/cm/sup 2//sec, and the irradiation lasted 2 to 3 days (intermittently, 5 hr each day). After cooling for 2 days the sample was dissolved by treating with nitric-sulfuric acid and potassium permanganate in the presence of carriers. From the clear solution the mixed sulfides were separated from the bulk of the contaminating activities, and the arsenic and copper was dissolved by treating successively with hot 6 N ammonium polysulfide and 6 N nitric acid, leaving the mercury sulfide unattacked. Further decontamination chemistry was carried out for each element. The amount of the element in the marine organisms was then determined by comparing Hg/sup 203/, Cu/sup 64/, and As/sup 76/ ore resistant t activities isolated from the sample with those from the monitor. The mean chemical yield was 40, 65, and 30% for mercury, copper, and arsenic, respectively, and the sensitivity of the method was Hg 1.5 ation g, Cu 0.03 ation g, and As 0.04 ation g. The method makes it possible to minimize loss and contamination, the greatest obstacles in other analytical techniques for the determination of extremely minute amounts of these elements. (auth)

• Research Organization: Tokyo Univ. of Education; Ehime Univ., Japan
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-018757
• OSTI ID: 4181957
• Journal Information: J. Atomic Energy Soc. Japan, Journal Name: J. Atomic Energy Soc. Japan Vol. Vol: 2
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ACTIVATION ANALYSIS
AMMONIUM COMPOUNDS
ANIMALS
ARSENIC
ARSENIC 76
BIOLOGY
BIOLOGY AND MEDICINE
CONTAMINATION
COPPER
COPPER 64
DECONTAMINATION
DETECTION
IRRADIATION
JRR-1
LOSSES
MANGANESE OXIDES
MEASURED VALUES
MERCURY
MERCURY 203
MONITORING
NEUTRON FLUX
NEUTRONS
NITRIC ACID
PERFORMANCE
PERMANGANATES
POTASSIUM COMPOUNDS
QUANTITATIVE ANALYSIS
RADIATION CHEMISTRY
RADIATION DOSES
RADIOACTIVITY
REACTORS
SAFETY
SAMPLING
SEA
SOLUTIONS
STANDARDS
SULFIDES
SULFURIC ACID
TRACE AMOUNTS