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Citation: SHI Yan, LIU Shao-Pu, LIU Zhong-Fang, LI Nian-Bin. Resonance Rayleigh Scattering Method with Fe(phen)₃²⁺ as a Probe for Determination of the Content of Total Flavones in Hawthorn Fruit and Ramulus Mori[J]. Chinese Journal of Applied Chemistry, ;2009, 26(4): 456-461. shu

Resonance Rayleigh Scattering Method with Fe(phen)₃²⁺ as a Probe for Determination of the Content of Total Flavones in Hawthorn Fruit and Ramulus Mori

1.
College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715

Corresponding author: LIU Shao-Pu,
Received Date: 10 April 2008
Available Online: 14 July 2008
Fund Project: 国家自然科学基金(20475045) (20475045)西南大学科技基金(SWNUQ2004017)资助项目 (SWNUQ2004017)

In a pH=8.0 BR buffer solution,some flavones such as morin,quercetin,and rutin,can react with Fe(phen)₃²⁺ to form ion association complexes.As a result,the Resonance Rayleigh scattering(RRS) is enhanced greatly.The maximum RRS wavelengths of the three ion association complexes are all located at 310 nm.In a certain concentrations range,there is a linear relationship between the RRS intensity and the flavones concentration.So,a new RRS method for the determination of some flavones with Fe(phen)₃²⁺ as a probe was established.The method had a high sensitivity and selectivity,with the detection limit(3σ/K) of 1.25×10^-7 mol/L(37.74 μg/L) for morin,1.80×10^-7 mol/L(54.42 μg/L) for quercetin and 2.72×10^-7 mol/L(167.30 μg/L) for rutin,respectively.The optimum reaction conditions and the effects of foreign substances were investigated.The contents of total flavones were determined in Hawthorn Fruit and Ramulus Mori with rutin and morin as the reference compounds respectively.In addition,the reaction mechanism was discussed.
- Resonance Rayleigh scattering(RRS),
- morin,
- quercetin,
- rutin,
- Fe(phen)₃²⁺,
- content of total flavones
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Resonance Rayleigh Scattering Method with Fe(phen)32+ as a Probe for Determination of the Content of Total Flavones in Hawthorn Fruit and Ramulus Mori

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通讯作者: 陈斌, bchen63@163.com

Resonance Rayleigh Scattering Method with Fe(phen)₃²⁺ as a Probe for Determination of the Content of Total Flavones in Hawthorn Fruit and Ramulus Mori