引用本文:
赵小辉, 牛卫芬. 曙红Y共振光散射法测定双嘧达莫[J]. 应用化学,
2008, 25(6): 693-696.
Citation: ZHAO Xiao-Hui, NIU Wei-Fen. Determination of Dipyridamole with Eosin Y by a Resonance Light-Scattering Method[J]. Chinese Journal of Applied Chemistry, 2008, 25(6): 693-696.
Citation: ZHAO Xiao-Hui, NIU Wei-Fen. Determination of Dipyridamole with Eosin Y by a Resonance Light-Scattering Method[J]. Chinese Journal of Applied Chemistry, 2008, 25(6): 693-696.
曙红Y共振光散射法测定双嘧达莫
English
Determination of Dipyridamole with Eosin Y by a Resonance Light-Scattering Method
Abstract:
In pH=1.98 buffer solution,dipyridamole associates with eosine Y and produces a greatly enhanced resonance light scattering (RLS) signals at 315 nm.It was found that the enhanced RLS intensity (ΔIRLS) at 315 nm is proportional to the concentration of dipyridamole,and thus a new method for determining trace dipyridamole has been established accordingly.This method has an advantage of simplicity in experi-mental operation and conditon.The determination limit of dipyridamole is 16.1 nmol/L when the concentrations of eosine Y is 3.0×10-5 mol/L.Simultaneously this method has been successfully applied to the actual samples,and the relatively standard deviation between 1.3% 2.5%,the recovery rate of actual sample is about (99.2±3.3)%~(102.0±1.7)%,indicating that this analysis method has the good determination accuracy and the reliability.
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Key words:
- dipyridamole
- / Eosin Y
- / Resonance Light Scattering
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