Abstract
12 samples from an assay process chain were submitted to qualitative and quantitative neutron activation analysis for the determination of gold. Gold was detected and quantitatively determined in three samples after a chemical separation consisting of solvent extraction and precipitation steps. Recoveries ranged between 81.0 and 93.6% and results of duplicated determinations were reproducible. Quantitative data were obtained from gamma-spectrometric photopeak-area counting. Interference from fast neutron reactions was negligible.
시금공정의 시료중의 금의 정성 및 정량을 열중성자에 의한 방사화분석으로 조사하였다. 회수률은 81.0∼93.6%이고 결과는 재현성이 좋았다. 정양적 결과는 ${\gamma}$-Spectrometric photopeak-area counting으로 얻었으며 속중성자반응으로 인한 간섭은 무시할 수 있었다.