共振光散射法测定水中的痕量萘酚  

Determination of Trace Naphthols in water by Resonance Light Scattering

作　　者：陈云生[1] 杨红梅[1] 何爱桃[1] 王永生[1] 

机构地区：[1]南华大学公共卫生学院卫生检验教研室,湖南省衡阳市常胜西路28号421001

出　　处：《光谱实验室》2009年第2期324-327,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：湖南省教育厅课题(402JY02C401)

摘　　要：建立共振光散射测定水中痕量萘酚新方法。萘酚在稀硫酸介质中,与溴酸钾、吖啶橙发生反应形成聚集离子,产生共振散射光谱,且导致共振光散射显著增强,据此建立了共振光散射测定痕量萘酚新方法。α-萘酚和β-萘酚具有共同的光谱性质和行为,其最大的共振光散射峰468.0nm;方法线性范围1.41×10-7—2.80×10-5mol/L,相关系数r=0.9996,检出限4.22×10-8mol/L,水样分析相对标准偏差为4.8%—7.3%,平均回收率为95.7%。方法灵敏、简单、快速,样品测定结果满意。A method was proposed for the determination of trace naphthols was established based on the reaction of naphthols with potassium bromate and acridine orange（AO） to form ion-association complexes in the dilute H2SO4 medium,which produced of resonance light scattering （RLS） spectra and resulted in the great enhancement of RLS.β-naphthol and β-naphthol had common character of spectroscopy and action.The greateat peak of RLS was at 468nm.The method had good linear relatively in proportion of naphthols in the range of 1.41×10-7—2.80×10-5mol/L.The relative coefficient and the limits of detection were 0.9996. The method is sensitive,simple,fast,and the results are satisfactory.

关 键 词：萘酚 水样 吖啶橙 共振光散射 

分 类 号：O657.32[理学—分析化学]