We determine carbinol in air with Chromotropic acid spectrophotometry, and found developing temperature and developing time exist certain linear relation.
选用变色酸分光光度法测定大气中甲醇，显色温度与显色时间有着一定的线性关系。
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Physical method, including thermal evaporation and magnetic sputtering, and chemical coating method are applied to prepare organic-inorganic composite chromotropic film.
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.