摘要
目的:应用B-Z化学振荡技术研究不同产地广藿香非线性电化学指纹图谱。方法:采用H_2SO_4-Ce(SO_4)_2-CH_2(COOH)_2-KBrO_3振荡体系,以广藿香为反应底物,丙二酸为耗散物,对广藿香的加入量、粒度大小、反应温度、搅拌速度因素进行考察,用电化学工作站记录B-Z化学振荡体系中的电位(E)随时间(t)的变化,获得广藿香电化学指纹图谱。结果:不同产地的广藿香药材的振荡参数包括最高电位、诱导时间、振荡寿命、振荡周期及最大振幅都不相同。结论:电化学指纹图谱方法简便快捷,准确直观,可以用于广藿香药材的定性分析。
Objective The electrochemical fingerprints of Pogostemon cablin in different places were studied by B-Z oscillating system. Methods H2SO4-Ce（SO4）2-CH2（COOH）2-KBrO3 chemical oscillation system was used with Pogostemon cablin as reaction substrate, malonate as a dissipative material. The electrochemical workstation was used to record the changes of the electrochemical potential（E） of oscillation system with time（t）. The amount of Pogostemon cablin, particle size, the temperature of B-Z oscillation system, stirring speed, the optimum conditions were obtained. Result The oscillation parameters, including the maximum electrostatic potential, the induction period, the life, the period and the amplitude, are significantly different from each other. Conclusion The electrochemical fingerprints has the advantage of convenience,sensitivity and precision. It can be used to identify Pogostemon cablin.
作者
许晓华
滕希峰
黄素晶
何洋
何琳
Xu Xiaohua;Teng Xifen;Huang Sujing;He Yang;He Lin(School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangdong Cosmetics Engineering ＆ Technology Research Center, Zhongshan 528458;School of Tradition Chinese Medicine, Guangdong Pharmaceutical University, Key Laboratory of State Administration of Traditional Chinese Medicine for Production and Development of Lingnan Medicinal Materials, Guangzhou 510006, China)
出处
《广东化工》
CAS
2018年第20期13-15,共3页
Guangdong Chemical Industry
基金
广东药学院"创新强校工程"医药化工省级实验教学示范中心资助项目(2015)
广东药学院2016国家级大学生创新创业训练计划项目(201610573006)
关键词
电化学指纹图谱
广藿香
B-Z振荡技术
定性分析
electrochemical fingerprints
Pogostemon cablin
B-Z oscillating system
qualitative analysis
