改性氧化铁纳米颗粒作为用于分光光度法测定和分离碱性品红的固相萃取剂。
Modified iron oxide nanoparticles as solid phase extractor for spectrophotometeric determination and separation of basic fuchsin.
作者信息
Zargar B, Parham H, Hatamie A
机构信息
Chemistry Department, College of Science, Shahid Chamran University, Ahvaz, Iran. zargar
出版信息
Talanta. 2009 Feb 15;77(4):1328-31. doi: 10.1016/j.talanta.2008.09.011. Epub 2008 Sep 18.
This study presents a novel separation, preconcentration and determination of basic fuchsin (BF) in an aqueous solution by sodium dodecyl sulfate (SDS)-bounded iron oxide nanoparticles (S-IONPs). It is shown that the novel magnetic nano-adsorbent is quite efficient for the adsorption and desorption of BF at 25 degrees C. Different parameters such as pH, temperature, ionic strength and composition of desorbent solvent were optimized. The effect of some co-existing ions on the determination was investigated. The nanoparticles were analyzed by transmission electron microscopy (TEM) and the sizes of S-IONPs were in the range of 20-100 nm. The method showed good linearity for the determination of BF in the range of 10-300 ng mL(-1) with a regression coefficient of 0.9989. The limit of detection (LOD) (signal-to-noise ratio of 3:1) was 0.0073 microg L(-1) and the relative standard deviation (RSD) for 0.03 microg mL(-1) and 0.2 microg mL(-1) of BF were 4.53% and 4.73%, respectively. The BF was determined successfully in spiked samples of Karoon River water.
本研究提出了一种利用十二烷基硫酸钠（SDS）包覆的氧化铁纳米颗粒（S-IONPs）对水溶液中的碱性品红（BF）进行分离、预富集和测定的新方法。结果表明，这种新型磁性纳米吸附剂在25℃时对BF的吸附和解吸效率很高。对pH、温度、离子强度和解吸剂溶剂组成等不同参数进行了优化。研究了一些共存离子对测定的影响。通过透射电子显微镜（TEM）对纳米颗粒进行了分析，S-IONPs的尺寸在20-100nm范围内。该方法在10-300ng mL（-1）范围内对BF的测定具有良好的线性，回归系数为0.9989。检测限（LOD）（信噪比为3:1）为0.0073μg L（-1），0.03μg mL（-1）和0.2μg mL（-1）的BF的相对标准偏差（RSD）分别为4.53%和4.73%。成功测定了卡鲁恩河水加标样品中的BF。
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