Trakya University, Faculty of Art and Science, Department of Chemistry, 22030 Edirne, Turkey.
J Hazard Mater. 2010 Jun 15;178(1-3):1015-20. doi: 10.1016/j.jhazmat.2010.02.040. Epub 2010 Feb 18.
In this study filamentous fungal biomass-loaded TiO(2) nanoparticles were used for the biosorption of lead(II) ions by flow-injection system coupled to flame atomic absorption spectrometry. The effects of pH, sample volume, loading and elution flow rates, eluent type and volume on the recovery of lead were investigated. Lead ions were sorbed on a biosorbent minicolumn at pH 4.0 followed by an elution step using 288 microL of 1.0 mol/L hydrochloric acid solution. The limit of detection was 0.78 microg/L. The validation of the described procedure was performed by the analysis of certified reference material (NRC-CNRC NASS-5 seawater). Finally, the presented biosorption procedure was applied to the determination of lead in tap water and seawater samples.
在这项研究中，采用负载丝状真菌生物量的 TiO(2)纳米粒子，通过流动注射系统与火焰原子吸收光谱法联用，对铅（II）离子进行生物吸附。考察了 pH 值、样品体积、负载和洗脱流速、洗脱液类型和体积对铅回收的影响。在 pH 值为 4.0 时，铅离子被吸附在生物吸附柱上，然后用 288 μL 1.0 mol/L 盐酸溶液进行洗脱。检测限为 0.78 μg/L。通过对认证参考物质（NRC-CNRC NASS-5 海水）的分析，对所描述的程序进行了验证。最后，将提出的生物吸附程序应用于自来水中和海水中铅的测定。
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