SIMULTANEOUS DETERMINATION OF PROTOCATECHUIC ALDEHYDE AND PROTOCATECHUIC ACID USING THE LOCALIZED SURFACE PLASMON RESONANCE PEAK OF SILVER NANOPARTICLES AND CHEMOMETRIC METHODS

Química Nova

Shabani, Ali Mohammad Haji¹  Sharif University of Technology, IR¹  Moghadam, Masoud Rohani¹  Dadfarnia, Shayessteh¹  Yazd University, IR¹  Khodaveisi, Javad¹  Vali-e-Asr University, IR¹  Hormozi-Nezhad, Mohammad Reza¹ 

关键词:  protocatechuic aldehyde;    protocatechuic acid;    chemometric methods;   

DOI  :  10.5935/0100-4042.20150084

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

A simple and sensitive spectrophotometric method is proposed for the simultaneous determination of protocatechuic acid and protocatechuic aldehyde. The method is based on the difference in the kinetic rates of the reactions of analytes with [Ag(NH3)2]+ in the presence of polyvinylpyrrolidone to produce silver nanoparticles. The data obtained were processed by chemometric methods using principal component analysis artificial neural network and partial least squares. Excellent linearity was obtained in the concentration ranges of 1.23-58.56 µg mL-1 and 0.08-30.39 µg mL-1 for PAC and PAH, respectively. The limits of detection for PAC and PAH were 0.039 and 0.025 µg mL-1, respectively.

【 授权许可】

Unknown