文献类型：期刊文献

英文题名：Double divisor-ratio spectra derivative spectrophotometry and application

作者：Tang, XD; Xu, JL; Sun, HX; Chen, M

机构：[1]E China Univ Sci & Technol, Petrochem Inst, Shanghai 200540, Peoples R China

年份：2002

卷号：22

期号：2

起止页码：296

外文期刊名：SPECTROSCOPY AND SPECTRAL ANALYSIS

收录：;EI(收录号：2004057995616);WOS:【SCI-EXPANDED(收录号:WOS:000175286800036)】；

语种：英文

外文关键词：double divisor-ratio spectra derivative spectrophotometry; simultaneous determination; O-nitrophenol; M-nitrophenol; P-nitrophenol

摘要：This paper reported a new double divisor-ratio spectra derivative spectrophotometry (calculation method) based on ratio spectra-derivative spectrophotometry (graph method). The priuciple for simultaneous determination of ternary mixture by the proposed method was discussed. The formulae for calculation method were given. The simultaneous determination of o-nitrophenol, m-nitrophenol and p-nitrophenol in their ternary mixture by the proposed method was studied and the results were satisfied. Comparison between the results obtained by different divisors indicated that the sensitivity of method was higher by "normalized spectra" than by "standard spectra".