Islamic Azad University, Hamedan, Iran.
Water Sci Technol. 2013;67(10):2302-6. doi: 10.2166/wst.2013.082.
An accurate method was developed for the determination of Brilliant Blue FCF, a synthetic soluble colorant, in environmental samples. The method is based on the catalytic effect of silver nanoparticles (AgNPs) on the oxidation of Brilliant Blue FCF by hexacyanoferrate(III) in acetate-acetic acid medium at room temperature. Linearity of around four orders in the magnitude of concentration was generally obtained. Detection and quantification limits of the investigated dye, which was evaluated at a signal-to-noise ratio of 3 for detection limit and quantification limit, were 0.1 and 0.6-130.0 ng/mL, respectively. The recoveries of the synthetic colorant Brilliant Blue FCF in environmental matrices (surface water) ranged from 95.0 to 101.0%. Relative standard deviation of less than 3.1% was also achieved. This method has been applied successfully in the determination of water-soluble colorant Brilliant Blue FCF in surface water samples.
建立了一种测定环境样品中亮蓝 FCF（一种合成可溶着色剂）的准确方法。该方法基于室温下在醋酸-醋酸盐介质中，银纳米粒子（AgNPs）对六氰合铁(III)氧化亮蓝 FCF 的催化作用。浓度的数量级通常在四个数量级范围内具有线性关系。以信噪比为 3 计算，所研究染料的检测限和定量限分别为 0.1 和 0.6-130.0 ng/mL。在环境基质（地表水）中合成着色剂亮蓝 FCF 的回收率在 95.0 至 101.0%之间。相对标准偏差也低于 3.1%。该方法已成功应用于测定地表水中水溶性着色剂亮蓝 FCF。
