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Citation: LIANG Ai-Hui, JIANG Zhi-Liang. Spectral Properties of Diphenhydramine Hydrochloride-Silicontungstic Acid Association Particle System and Its Analytical Application[J]. Chinese Journal of Applied Chemistry, ;2006, 23(3): 309-312. shu

Spectral Properties of Diphenhydramine Hydrochloride-Silicontungstic Acid Association Particle System and Its Analytical Application

LIANG Ai-Hui ^a ,
JIANG Zhi-Liang ^a,b

1.
a Department of Material and Chemical Engineering, Guilin University of Technology, Guilin;
2.
b Department of Resource and Environmental Science, Guangxi Normal University, Guilin 541004

Received Date: 24 April 2005
Available Online: 30 June 2005
Fund Project: 广西自然科学基金(0575042) (0575042)

In pH=4.0 HCl-NaAc,the diphenhydramine hydrochloride (DPH)-silicontungstic acid(SiW) association particle system exhibits a maxmum absorption peak at 295 nm.The A_{295 nm} is linear with the DPH concentration in range of 0.5×10^-6~8.0×10^-6 g/mL.The detection limit is 0.10×10^-6 g/mL DPH.A new spectrophotometric method is used for the determination of DPH in commercial samples,with some advantages including high sensitivity,simplicity, rapidity and accuracy.The recovery is in the range of 98.0%~102%.The RSD is 0.9%~2.2%.The results of the resonance scattering spectra show that there are(DPH-SiW)_n association particles in this system.
- diphenhydramine hydrochloride,
- silicontungstic acid,
- association particle,
- spectrophotometry,
- scattering resonance
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