介绍1990年以来变色酸双偶氮显色剂在稀土分析中应用的进展，着重介绍了新出现的显色剂。
In this paper, the development of using bi azo chromotropic acids as chromogenic reagents in re determination was reviewed, especially the new reagents introduced after 1990.
用显色络合物络合比和试剂结构研究并初步探讨了不对称变色酸双偶氮类衍生物与贵金属元素的络合机理。
The complexing mechanism of unsymmetric bis-arylazo derivative of chromotropic acid and precious metal elements was studied using composition ratio of the color complex and constitution of reagents.
一种基于双偶氮苯聚合物可擦除的双光子偏振多元、多阶、多层光存储技术。
The invention relates to an erasable two-photon polarized multivariate, multistage and multilayer optical storage technology based on a bisazo benzene polymer.
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