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N-benzoyl rhodamine B hydrazine, preparation and use thereof

A technology for the reaction of benzoyl and benzoyl chloride, which is applied in the fields of fluorescence/phosphorescence, organic chemistry, color/spectral characteristics measurement, etc., can solve the problems of application limitations, susceptibility to interference, poor selectivity, etc., and improve detection sensitivity and selectivity performance, broaden the scope of application, and high detection sensitivity

Inactive Publication Date: 2010-09-29
INST OF CHEM CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantages of these methods are mainly poor selectivity, easy to be disturbed, and their application has been greatly restricted.

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  • N-benzoyl rhodamine B hydrazine, preparation and use thereof
  • N-benzoyl rhodamine B hydrazine, preparation and use thereof
  • N-benzoyl rhodamine B hydrazine, preparation and use thereof

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Abstract

The invention discloses N-benzoyl rhodamine B hydrazide, a method for making the same and an application of the same. The structure of the N-benzoyl rhodamine B hydrazine is shown in formula I. Due to having great molar absorptivity and high fluorescence quantum yield, xanthene dye is an excellent matrix of an optical probe. The xanthene dye derivative-N-benzoyl rhodamine B hydrazide can be selectively reacted with hypochlorite to carry out chromogenic and fluorescence opening reaction; therefore, a system with excellent optical performance can be generated by colorless matter; moreover, detection can be carried out through both a light absorption method and a fluorescence method. In addition, when the N-benzoyl rhodamine B hydrazide is used to detect hypochlorite, high detection sensitivity can be obtained and the detection can be completed just through adopting a small amount of samples, thereby broadening the application range of the method.

Description

technical field The invention relates to N-benzoyl rhodamine B hydrazine and a preparation method thereof, as well as the application of N-benzoyl rhodamine B hydrazine in detecting hypochlorite ions. Background technique The current methods for detecting hypochlorite mainly include sodium thiosulfate titration (HG / T2498-93), o-toluidine colorimetry (GB5750-85) and tetramethylbenzidine (TMB) colorimetry, etc. The disadvantages of these methods are mainly poor selectivity, easy to be interfered, and their application has been greatly limited. As an important fluorescent material, xanthene dyes are widely used in the design and synthesis of various analytical reagents due to their excellent light absorption and fluorescence properties (J. Am. Chem. Soc. 1997, 119: 7386-7387). Taking xanthene dyes as the matrix and modifying them with special reactive groups can combine the high sensitivity of xanthene dyes with the high selectivity of special groups to obtain excellent analy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D491/10G01N21/64G01N21/31
Inventor 马会民陈新启
Owner INST OF CHEM CHINESE ACAD OF SCI
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