微乳液分光光度法测定茶叶中的微量锰

Determination of Trace Manganese of Tea by the Spectrophotometric Method

研究了以微乳液为介质时，锰与1-（2-吡啶偶氮）-2-萘酚（PAN）的显色反应，选择了560nm为测量波长，470nm为参比波长，锰量在0．1-0．8μg/mL。在该范围内测定凤凰茶叶中的含锰量，结果满意。

The research on the coloration reaction of manganese and 1 - （2 pyridine accidentally nitrogen） - 2 - naphthol（PAn） in the medium of microemulsion was made,having chosen 560 nm as measuring wavelength,470 nm as the reference wavelength, the manganese content in 0.1 - 0.8 μg/mL. The manganese content of feng huang was determined and the rusult was satisfactory.