Karve Manjusha, Rajgor Reeta V
Department of Chemistry, University of Mumbai, Vidyanagari, Mumbai 400098, India.
J Hazard Mater. 2009 Jul 15;166(1):576-80. doi: 10.1016/j.jhazmat.2008.11.065. Epub 2008 Nov 27.
A simple and reliable method based upon impregnation of Cyanex302 on octadecyl bonded silica membrane disk has been developed for separation and atomic absorption spectrometric determination of nickel. The influence of various parameters like aqueous phase pH, flow rate and volume of eluent were investigated systematically to optimize the conditions for quantitative sorption and desorption of nickel. The break through volume for nickel was greater than 1.0 dm(3), enrichment factor more than 100 and a detection limit of 2.1 microg dm(-3) was achieved. The method applied for detection of nickel in tap water and effluent sample had a relative standard deviation (R.S.D.) of 0.4%.
已开发出一种基于将Cyanex302浸渍在十八烷基键合硅胶膜盘上的简单可靠方法，用于镍的分离和原子吸收光谱测定。系统研究了水相pH值、流速和洗脱剂体积等各种参数的影响，以优化镍定量吸附和解吸的条件。镍的穿透体积大于1.0 dm(3)，富集因子大于100，检测限达到2.1 μg dm(-3)。该方法用于检测自来水和废水样品中的镍，相对标准偏差（R.S.D.）为0.4%。
