近二十年来,激光显微光谱分析虽具取样量少(一般为微克量级),快速,样品不需预处理等优点。但分析灵敏度低,妨碍了它的发展。因而,设法提高分析灵敏度是一重要课题。国内外已做过不少工作。报告了“在磁场作用下进行激光显微分析大部分元素的光谱线强度都增大”。分析灵敏度影响的因素很多,这里仅就试验中外加磁场对提高元素Ag分析灵敏度的作用进行一些探讨。 Nearly two decades, although the laser micro-spectrometry sampling less (usually micrograms), fast, sample without pretreatment and so on. However, the low sensitivity of analysis hinders its development. Therefore, trying to improve the sensitivity of the analysis is an important issue. I have done a lot of work both at home and abroad. Reported that “the intensity of the spectral lines of most elements increased under laser micro-analysis under a magnetic field.” Analysis of the sensitivity of many factors, here only the magnetic field in the experiment to improve the sensitivity of elemental Ag analysis of some of the role.