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Abstract：
The optimization and application of a new hyphenated procedure for iron ionic speciation, i.e., high performance liquid chromatography (HPLC) with short cation-exchange column (50 mm × 4 mm) coupled to high resolution inductively coupled plasma optical emission spectrometry (ICP hrOES), is presented in this paper. Fe(III) and Fe(II) species were separated on the column with the mobile phase containing pyridine-2,6-dicarboxylic acid (PDCA). The total time of the analysis was approx. 5 min, with a significantly low eluent flow rate (0.5 mL min-1) compared to the literature. Additionally, a long cation-exchange column (250 mm × 4.0 mm) was used as reference. Depending on the total iron content in the sample, two plasma views were chosen, e.g., an attenuated axial (<2 g kg-1) and an attenuated radial. The standard addition method was performed for the method\'s accuracy studies, and the applicability was presented on three types of samples: sediments, soils, and archaeological pottery. This study introduces a fast, efficient, and green method for leachable iron speciation in both geological and pottery samples.
摘要：
铁离子形态新的连字符程序的优化和应用，即，短阳离子交换柱（50mm×4mm）的高效液相色谱（HPLC）与高分辨率电感耦合等离子体发射光谱（ICPhrOES），在本文中介绍。Fe（III）和Fe（II）物种在色谱柱上分离，流动相含有吡啶-2,6-二羧酸（PDCA）。分析的总时间约为10℃。5分钟,与文献相比，洗脱液流速明显较低（0.5mLmin-1）。此外,使用长的阳离子交换柱(250mm×4.0mm)作为参考。根据样品中的总铁含量，选择了两个等离子视图，例如，轴向衰减（<2gkg-1）和径向衰减。标准添加方法进行了方法的准确性研究，并提出了三种类型的样品的适用性：沉积物，土壤,和考古陶器。这项研究引入了一种快速，高效,地质和陶器样品中可浸出铁形态的绿色方法。
