A series of measurements showed that the experimental error of the direct spectrophotometric determinations in the ultraviolet region was less than 2 % whereas that for the diphenyl thiocarbazone method was about 5 % .

依靠紫外吸收的测定方法 比较 准确，测定误差可在2%以内，而 用 双 硫 腙间接测定误差约在5%左右。

Molecular Structure of Bis - furfural - thiocarbazone

双 呋喃 醛 缩 二 氨基 硫脲 腙的分子结构 测定