高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 331.

• Molecular Spectroscopy • 上一篇    下一篇

Study on Highly Selective Photochemical Fluorescence Method Based on Monitoring the Photodegradation Intermediate

LIU Zhi-Hong, MA Wan-Hong, CAI Ru-Xiu   

  1. Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
  • 出版日期:1999-12-31 发布日期:1999-12-31

Study on Highly Selective Photochemical Fluorescence Method Based on Monitoring the Photodegradation Intermediate

LIU Zhi-Hong, MA Wan-Hong, CAI Ru-Xiu   

  1. Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
  • Online:1999-12-31 Published:1999-12-31

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摘要：

General methods for phenol and substitutive phenol in mixing samples could only determine total amount due to the similarity of their UV/vis and fluorescence spectra characteristics.In this paper a highly selective photochemical fluorescence (PCF) method for 2,6-dimethylphenol determination was developed. The method was based on monitoring the photodegradation intermediate of 2,6-dimethylphenol on nanosize meter TiO2 surface. The fluorescence intensity of the intermediate was enhanced in CHCI3 medium and there has a linear relationship between the fluorescence intensity and concentration of 2,6-dimethylphenol. While other phenolic compounds such as phenol,4-methylphenol,o-aminophenol and so on did not interfere.

Abstract:

General methods for phenol and substitutive phenol in mixing samples could only determine total amount due to the similarity of their UV/vis and fluorescence spectra characteristics.In this paper a highly selective photochemical fluorescence (PCF) method for 2,6-dimethylphenol determination was developed. The method was based on monitoring the photodegradation intermediate of 2,6-dimethylphenol on nanosize meter TiO2 surface. The fluorescence intensity of the intermediate was enhanced in CHCI3 medium and there has a linear relationship between the fluorescence intensity and concentration of 2,6-dimethylphenol. While other phenolic compounds such as phenol,4-methylphenol,o-aminophenol and so on did not interfere.

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