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首页> 外文期刊>International journal of environmental analytical chemistry >Use of fluorescence spectroscopy and voltammetry for the analysis of metal-organic matter interactions in the New Caledonia lagoon
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Use of fluorescence spectroscopy and voltammetry for the analysis of metal-organic matter interactions in the New Caledonia lagoon

机译：荧光光谱和伏安法在新喀里多尼亚泻湖中金属-有机物相互作用分析中的应用

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摘要

Fluorescence, polarographic and potentiometric analysis of sea water from the New Caledonia lagoon (located south of Noumea) allowed the determination of the specific properties of the dissolved and particulate phases of organic matter (OM)-metal complexes according to various regions of the lagoon. In particular, OM complexes with Ni, Zn, Pb, Cu, Cd were chosen in this study due to the sensitivity of these complexes to affect biocenosis of the nearby enclosed coral reef as well as their availability to enter the coast from erosion (terrigenous OM) or human activities from nickel extraction or pollution from waste sites (anthopo-genic OM) that exist throughout New Caledonia. Combined with geochemical modelling, the OM-metal complexes analysis allowed the determination of their conditional stability constants which in turn helped in predicting the fate of the metal pollution in the lagoon. For the first time, fluorescence, polarographic and potentiometric techniques combined with geochemical models that employed discrete pKa distribution on OM enabled the determination of the origin of the OM, as either natural or anthopogenic.
机译：对新喀里多尼亚泻湖（位于努美阿以南）的海水进行荧光，极谱和电位分析，可以根据泻湖的各个区域确定有机物（金属）-金属配合物的溶解相和颗粒相的特定性质。尤其是，本研究中选择了具有Ni，Zn，Pb，Cu，Cd的OM复合物，因为这些复合物会影响附近封闭的珊瑚礁生物群落的敏感性以及它们从侵蚀中进入海岸的可用性（陆源性OM ）或镍矿开采中的人类活动或新喀里多尼亚各地存在的废料场污染（人源性OM）。结合地球化学建模，OM-金属配合物分析可以确定其条件稳定性常数，从而有助于预测泻湖中金属污染的命运。荧光，极谱法和电位计技术首次结合在OM上采用离散pKa分布的地球化学模型，使得能够确定OM的来源，无论是自然来源还是人为来源。

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  • 作者

    Patricia Merdy; Aurelie Bonnefoy; Celine Martias; Cedric Garnier; Sandrine Huclier;

  • 作者单位

    University of Toulon, Research Group PROTEE (Processus de Transferts et d'Echanges dans I'Environnement), BP 20132-83957 La Garde Cedex, France;

    University of Toulon, Research Group PROTEE (Processus de Transferts et d'Echanges dans I'Environnement), BP 20132-83957 La Garde Cedex, France;

    University of Toulon, Research Group PROTEE (Processus de Transferts et d'Echanges dans I'Environnement), BP 20132-83957 La Garde Cedex, France;

    University of Toulon, Research Group PROTEE (Processus de Transferts et d'Echanges dans I'Environnement), BP 20132-83957 La Garde Cedex, France;

    SUBATECH Ecole des Mines de Nantes, 14 rue Alfred Kastler BP 20722-44307 Nantes Cedex 3, France;

  • 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

    potentially toxic metals; organic matter; voltammetry; fluorescence; quenching; modelling;

    机译：具有潜在毒性的金属;有机物;伏安法荧光淬火造型;

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