最近日本科学发展了三种锰的超微量分析的新方法。(1) 有二位科学家对环境及生物化学研究时,提供在水中含痕迹或超微量锰的分析方法。目前已经使用的仪器及方法中,已经可以达到的分析量是纳克(nnaogram)或在每克水中若干纳克,但这些已用的方法中大部分要经过浓缩或分离。日本科学家发展的是催化法,其精确度比惯常的色谱法更为精确。目前已经可测到每毫升中0.1至0.5纳克的准 Recently, Japanese scientists have developed three new methods for the ultramicro analysis of manganese. (1) Two scientists provided analytical methods for trace or trace manganese in water for environmental and biochemical research. Among currently used instruments and methods, the amount of analysis that can be achieved is nnaogram or several nanograms per gram of water, but most of these used methods are concentrated or separated. Japanese scientists have developed the catalytic method, its accuracy is more accurate than the usual chromatography. So far, 0.1 to 0.5 ng per milliliter has been measured