Soylak Mustafa, Tuzen Mustafa, Mendil Durali, Turkekul Ibrahim
Erciyes University, Faculty of Science and Arts, Chemistry Department, 38039 Kayseri, Turkey.
Talanta. 2006 Dec 15;70(5):1129-35. doi: 10.1016/j.talanta.2006.02.027. Epub 2006 Mar 20.
A solid phase extraction procedure based on biosorption of copper(II), lead(II), zinc(II), iron(III), nickel(II) and cobalt(II) ions on Aspergillus fumigatus immobilized Diaion HP-2MG has been investigated. The analytical conditions including amounts of A. fumigatus, eluent type, flow rates of sample and eluent solutions were examined. Good recoveries were obtained to the spiked natural waters. The influences of the concomitant ions on the retentions of the analytes were also examined. The detection limits (3sigma, N=11) were 0.30mugl(-1) for copper, 0.32mugl(-1) for iron, 0.41mugl(-1) for zinc, 0.52mugl(-1) for lead, 0.59mugl(-1) for nickel and 0.72mugl(-1) for cobalt. The relative standard deviations of the procedure were below 7%. The validation of the presented procedure is performed by the analysis of three standard reference materials (NRCC-SLRS 4 Riverine Water, SRM 1515 Apple leaves and GBW 07605 Tea). The procedure was successfully applied for the determination of analyte ions in natural waters microwave digested samples including street dust, tomato paste, black tea, etc.
研究了一种基于固定在Diaion HP - 2MG上的烟曲霉对铜（II）、铅（II）、锌（II）、铁（III）、镍（II）和钴（II）离子进行生物吸附的固相萃取方法。考察了包括烟曲霉用量、洗脱液类型、样品和洗脱液流速在内的分析条件。加标天然水获得了良好的回收率。还考察了共存离子对分析物保留的影响。检测限（3σ，N = 11）：铜为0.30μg l⁻¹，铁为0.32μg l⁻¹，锌为0.41μg l⁻¹，铅为0.52μg l⁻¹，镍为0.59μg l⁻¹，钴为0.72μg l⁻¹。该方法的相对标准偏差低于7%。通过分析三种标准参考物质（NRCC - SLRS 4河水、SRM 1515苹果叶和GBW 07605茶叶）对所提出的方法进行了验证。该方法成功应用于包括街道灰尘、番茄酱、红茶等在内的天然水微波消解样品中分析物离子的测定。
