Microelement zinc content in the traditional Tibetan medicine labeled "Zuo Zhi Da Xie", was measured by dithizone spectrophotometric method with the samples dissolved in aqua regia.
采用双硫腙分光光度法，定量测定藏药“佐志达协” 中微量金属元素锌，经试验用王水消解试样。
2
A method for determining mercury (Hg) in reprocessing process was investigated with separation by dithizone extraction and determination by cold atomic fluorescence spectrometry.