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首页> 外文期刊>Marine Chemistry >Aggregation of riverine colloidal iron in estuaries: A new kinetic study using stopped-flow mixing
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Aggregation of riverine colloidal iron in estuaries: A new kinetic study using stopped-flow mixing

机译：河口胶体铁的聚集：使用停流混合的新动力学研究

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The kinetics of aggregation of riverine colloidal iron have been examined using a stopped-flow technique which probes the first few seconds of mixing between river and sea water end members. A significant fraction, up to 80%, of the colloidal iron is aggregated during the first 1-2 s of mixing, indicating that the aggregation process is much faster than previously thought Most of the aggregation induced by seawater results from the divalent cations Mg~(2+) and Ca~(2+), with the overall ionic strength having little influence. At equal concentrations of 27 mM, the rate of aggregation by alkaline earth cations increased with ionic size Mg~(2+)
机译：江河胶体铁的聚集动力学已使用一种停流技术进行了检验，该技术探测了河水和海水末端成员之间混合的最初几秒钟。在混合的前1-2秒内，很大一部分胶体铁（最多80％）会聚集，这表明聚集过程比以前认为的要快得多。海水诱导的大部分聚集是由二价阳离子Mg〜引起的。 （2+）和Ca〜（2+），而总离子强度几乎没有影响。在27 mM的相同浓度下，碱土阳离子的聚集速率随离子大小Mg〜（2 +）

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