R06e (K40 in food)

Materials of natural radioactivity

From the Ministry of Education, the use of the "Ⅱ kun measure" radiation meter that is lent to school for, the determination of potassium in (especially dry food) food can be easily.

【EXPERIMENTAL RESULTS】

REFERENCES

Volume 48 Chemical education "Let's try to measure the natural radioactivity in the drug shelf of science room (measured emitted from 40K in the potassium of the β-ray)" Kamata Masahiro, Shenzhen Shino Author, 736-738 (2000)

Volume 49 Chemical education "(radioactivity measurement of 40K using II" weigh-kun ") radiochemical experiment method using natural radioactivity (X)" Masahiro Kamata, Shenzhen Shino Author, 582-584 (2001)