首页> 外文期刊>International journal of environmental analytical chemistry >Synthesis and characterisation of novel chelating resin for selective preconcentration and trace determination of Pb(Ⅱ) ions in aqueous samples by innovative microsample injection system coupled flame atomic absorption spectrometry
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Synthesis and characterisation of novel chelating resin for selective preconcentration and trace determination of Pb(Ⅱ) ions in aqueous samples by innovative microsample injection system coupled flame atomic absorption spectrometry

机译:新型微量进样系统耦合火焰原子吸收光谱法测定水样中的Pb(Ⅱ)离子并进行选择性预富集和痕量测定的新型螯合树脂的合成与表征

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摘要

Expanded polystyrene (EPS) foam waste (white pollutant) was utilised for the synthesis of novel chelating resin i.e. EPS-N = N-α-Benzoin oxime (EPS-N = N-Box). The synthesised resin was characterised by FT-IR spectroscopy, elemental analysis, and thermogravimetric analysis. A selective method for the preconcentration of Pb(Ⅱ) ions on EPS-N = N-Box resin packed in mini-column was developed. The sorbed Pb(Ⅱ) ions were eluted with 5.0 mL of 2.0 mol L~(-1) HCl and determined by microsample injection system coupled flame atomic absorption spectrometry (MIS-FAAS). The average recovery of Pb(Ⅱ) ions was achieved 95.5% at optimum parameters such as pH 7, resin amount 400 mg, flow rates 1.0 mL min~(-1) (of eluent) and3.0 mL min ~(-1) (of sample solution). The total saturation capacity of the resin, limit of detection (LOD) and limit of quantification (LOQ) of Pb(Ⅱ) ions were found to be 30 mg μg~(-1), 0.033 μg L~(-1) and 0.107 μg L~(-1), respectively with preconcentration factor of 300. The accuracy, selectivity and validation of the method was checked by analysis of sea water (BCR-403), wastewater (BCR-715) and Tibet soil (NCS DC-78302) as certified reference materials (CRMs). The proposed method was applied successfully for the trace determination of Pb(Ⅱ) ions in aqueous samples.
机译:膨胀的聚苯乙烯(EPS)泡沫废料(白色污染物)被用于合成新型螯合树脂,即EPS-N =N-α-苄星肟(EPS-N = N-Box)。通过FT-IR光谱,元素分析和热重分析来表征合成的树脂。提出了一种在小柱包装的EPS-N = N-Box树脂上富集Pb(Ⅱ)离子的选择性方法。用5.0 mL的2.0 mol L〜(-1)HCl洗脱吸附的Pb(Ⅱ)离子,并通过微量进样系统耦合火焰原子吸收光谱法(MIS-FAAS)测定。在pH 7,树脂量400 mg,流速1.0 mL min〜(-1)(洗脱液)和3.0 mL min〜(-1)等最佳参数下,Pb(Ⅱ)离子的平均回收率达到了95.5%。 (样品溶液)。树脂的总饱和容量,Pb(Ⅱ)离子的检出限(LOD)和定量限(LOQ)分别为30 mgμg〜(-1),0.033μgL〜(-1)和0.107微克L〜(-1)分别具有300的预浓缩系数。该方法的准确性,选择性和有效性通过分析海水(BCR-403),废水(BCR-715)和西藏土壤(NCS DC- 78302)作为认证参考材料(CRM)。该方法成功用于痕量水样中痕量铅离子的测定。

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  • 作者单位

    Chemistry Department, Faculty of Science and Art, Pamukkale University, Denizli 20017, Turkey,Institute of Advance Research Studies in Chemical Science, Faculty of Natural Science, University of Sindh, Jamshoro 76080, Pakistan;

    Chemistry Department, Faculty of Science and Art, Pamukkale University, Denizli 20017, Turkey;

    Institute of Advance Research Studies in Chemical Science, Faculty of Natural Science, University of Sindh, Jamshoro 76080, Pakistan;

    Chemistry Department, Faculty of Science and Art, Pamukkale University, Denizli 20017, Turkey;

    Chemistry Department, Faculty of Science and Art, Pamukkale University, Denizli 20017, Turkey;

    Chemistry Department, Faculty of Science and Art, Pamukkale University, Denizli 20017, Turkey;

    Institute of Advance Research Studies in Chemical Science, Faculty of Natural Science, University of Sindh, Jamshoro 76080, Pakistan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    expanded polystyrene foam; chelating resin; lead; preconcentration; MIS-FAAS;

    机译:发泡聚苯乙烯泡沫;螯合树脂铅;预浓缩管理信息系统;
  • 入库时间 2022-08-17 13:30:41

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