Instituto de Química - Universidade Federal de Uberlândia, Av. João Naves de Ávila, 2121 Uberlândia, MG, Brazil.
Talanta. 2012 Feb 15;90:99-102. doi: 10.1016/j.talanta.2012.01.004. Epub 2012 Jan 8.
A simple, accurate and fast (180 injections h(-1)) batch injection analysis (BIA) system with multiple-pulse amperometric detection has been developed for selective determination of ethanol in gasohol and fuel ethanol. A sample aliquot (100 μL) was directly injected onto a gold electrode immersed in 0.5 mol L(-1) NaOH solution (unique reagent). The proposed BIA method requires minimal sample manipulation and can be easily used for on-site analysis. The results obtained with the BIA method were compared to those obtained by gas-chromatography and similar results were obtained (at 95% of confidence level).
已经开发出一种简单、准确、快速（180 次注射/小时）的批量注射分析（BIA）系统，该系统具有多脉冲安培检测功能，可用于选择性测定汽油醇和燃料乙醇中的乙醇。将 100 μL 样品直接注入浸入 0.5 mol/L NaOH 溶液（独特试剂）中的金电极中。该 BIA 方法需要最小的样品处理，可轻松用于现场分析。通过 BIA 方法获得的结果与通过气相色谱法获得的结果进行了比较，并且得到了相似的结果（置信水平为 95%）。
