使用间重氮苯胂酸官能化硅胶对1-萘酚进行固相分光光度分析

Zaitseva Nataliya, Alekseev Sergei, Zaitsev Vladimir, Raks Viktoria

Department of Analytical Chemistry, Faculty of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64/13, Kyiv, 01601, Ukraine.

Nanoscale Res Lett. 2016 Dec;11(1):149. doi: 10.1186/s11671-016-1356-2. Epub 2016 Mar 15.

The m-aminophenylarsonic acid (m-APAA) was immobilized onto the silica gel surface with covalently grafted quaternary ammonium groups via ion exchange. The diazotization of ion-bonded m-APAA resulted in a new solid-phase spectrophotometric reagent for detection of 1-naphtol in environmental water samples. The procedure of solid-phase spectrophotometric analysis is characterized by 20 μg L(-1) limit of detection (LOD) of 1-naphtol, up to 2000 concentration factor, and insensitivity to the presence of natural water components as well as to 30-fold excess of phenol, resorcinol, and catechol.

通过离子交换将间氨基苯胂酸（m-APAA）固定在具有共价接枝季铵基团的硅胶表面。离子键合的m-APAA重氮化产生了一种用于检测环境水样中1-萘酚的新型固相分光光度试剂。固相分光光度分析方法的特点是对1-萘酚的检测限（LOD）为20μg L⁻¹，浓缩倍数高达2000，对天然水成分的存在以及30倍过量的苯酚、间苯二酚和邻苯二酚不敏感。