Absorption Spectra Study of the Association Nanoparticle System of Berberine-[AuI4]- and Its Analytical Application
WANG Li-ｓheng1，ZOU Jie-ming1，JIANG Zhi-liang2*，LIAO Zu-he2，PAN Hong-cheng2
1. Guilin Sanjin Pharmaceutical Company，Guilin 541004，China 2. Department of Resource and Environmental Science, Guangxi Normal University，Guilin 541004，China
Abstract：In 0.008 mol·L-1 HCl medium, [AuCl4]- and I- combine to form [AuI4]-. [AuI4]- reacts with berberine(BB) to form (AuI4-BB) association molecule. The molecules aggregate automatically owing to strong hydrophobic and molecular forces. And (AuI4-BB)n association nanoparticles with orange-yellow color were observed. It exhibits a resonance scattering peak at 520 nm. The absorption peak for the nanoparticle system and the [AuI4]- is at 350 nm. However, the absorbance values for the nanoparticle system increased in the visible light region. Under the conditions chosen, the BB concentration in the range of 0.8×10-6 mol·L-1-20×10-6 mol·L-1 is linear to the A450 nm value. The results show that the formation of (AuI4-BB)n nanoparticles produces the resonance scattering effect and the orange-yellow color.
王力生1，邹节明1，蒋治良2*，廖祖荷2，潘宏程2 . 小檗碱-[AuI4]-缔合纳米微粒体系的吸收光谱研究及分析应用 [J]. 光谱学与光谱分析, 2004, 24(12): 1640-1642.
WANG Li-ｓheng1，ZOU Jie-ming1，JIANG Zhi-liang2*，LIAO Zu-he2，PAN Hong-cheng2 . Absorption Spectra Study of the Association Nanoparticle System of Berberine-[AuI4]- and Its Analytical Application. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(12): 1640-1642.
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