INAA with gamma-gamma coincidence for selenium determination in food |
| |
Authors: | A Di Piero M A Bacchi E A N Fernandes |
| |
Institution: | 1.Centro de Energia Nuclear na Agricultura,Universidade de S?o Paulo,Piracicaba,Brazil |
| |
Abstract: | Selenium detection limits of INAA are normally above its concentration in most biological materials. Gamma-gamma coincidence
methodology can be used to improve the detection limits and uncertainties in the determination of selenium. Here, some edible
parts of plants were measured using a HPGe detector equipped with a NaI(Tl) active shielding, producing spectra both in normal
and coincidence modes. The results presented the reduction of the detection limits of selenium by a factor of 2 to 3 times
and improvement in the uncertainty of up to 2 times. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |