【摘要】 研究了Al³⁺对金橙G（OG）共振光散射光谱的影响,发现Al³⁺对OG的共振散射光谱有增强效应,且在一定条件下,其增强值（△I）与加入Al³⁺的质量浓度呈现良好的线性关系,据此建立了一种定量测定Al³⁺的新方法。该方法线性范围为0.033～0.90μg·mL^-1,检出限为0.0167μg·mL^-1。该方法简便、快速,用于茶叶中痕量Al³⁺的测定,结果满意。更多还原

【Abstract】 Study on the influence of Al³⁺ to resonance light scattering（RLS） spectrum of orange G（OG）,and found Al³⁺ could enhance the RLS of OG,and in certain conditions,the enhanced intensity of RLS（△I） is proportional to the concentration of Al³⁺(ρAl³⁺ ).So a method of RLS for the determination of Al³⁺ is established.The linear range for the determination of Al³⁺ is 0.033-0.90μg·mL^-1,the detection limit is 0.0167μg·mL^-1.This method is simple, rapid and has been applied to the determination of trace Al³⁺ in running water with satisfactory results.更多还原