应用化学2009，Vol.26Issue(11)：1349-1352,4.
基于银纳米粒子的生成测定痕量甲醛
Determination of Trace Formaldehyde Based on Formation of Silver Nanoparticles
摘要
Abstract
In an alkaline solution, Ag~+ can be reduced by formaldehyde to form silver nanoparticles, leading to the resonance light scattering( RLS) intensities of the system to be enhanced. Based on these phenomena, a new RLS method for trace formaldehyde determination in environment water samples was established. Under the optimized reaction conditions, the enhanced RLS intensities of the system has a good relationship with the concentration of formaldehyde in a range of 1. 0 × 10 ~(-6) ～2. 0 × 10 ~(-5) mol/L with the detection limit of 1. 0 × 10~(-7) mol/L. The standard addition recovery ratio is in a range of 96. 26% to 103. 32% for formaldehyde detection in environmental water samples and in the indoor air. According to the phenomenon that the resultant from the reaction of Ag~+ and formaldehyde has different colors in the presence of formaldehyde with different concentrations, a visual semi-quantificational method for detection of formaldehyde could be achieved.关键词
可视化测定/RLS法/甲醛/银纳米粒子Key words
visual determination/ resonance light scattering/ formaldehyde/ silver nanoparticles分类
化学化工引用本文复制引用
龙云飞,周立萍,韩明..基于银纳米粒子的生成测定痕量甲醛[J].应用化学,2009,26(11):1349-1352,4.基金项目
湖南自然科学基金(09JJ6021)、湖南科技大学博士科研启动基金资助项目 （09JJ6021）
