cnaa

cnaa

1. continuous neutron activation analysis (CNAA)

[化] 连续中子活化分析

2. CNAA is far more sensitive and accurate than NNAA. CNAA is particularly suitable for the analysis of samples of low rare-earth contents (at a level of 0.1 ppm or less)which can not be analyzed by NNAA alone.

实验表明,CNAA 法的灵敏度和准确度比不破坏中子活化分析法(NNAA)有较大提高,因此 CNAA 法更适于测定低含量且含铀的稀土元素。

3. The combinatory neutron activation analysis (CNAA)-a combination of destructive and non-destructive neutron activation analysis (NNAA)-of rare earth elements is given.

本文应用组合中子活化分析法(CNAA)测定了含量在0.1ppm 左右且含铀量为几 ppm 的稀土属各元素。