Adam Mickiewicz University, Faculty of Chemistry, Department of Analytical Chemistry, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland.
Adam Mickiewicz University, Faculty of Chemistry, Department of Analytical Chemistry, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland.
Anal Chim Acta. 2021 Feb 22;1147:1-14. doi: 10.1016/j.aca.2020.12.047. Epub 2020 Dec 27.
The paper presents a usage of a new hyphenated technique, wherein a Multi-mode Sample Introduction System (MSIS) was applied as an interface of two high pressure liquid chromatography units and inductively coupled plasma optical emission spectrometry (2 HPLC-MSIS-ICP-OES). Simultaneous separation and detection of non-hydride forming and hydride forming elements was possible due to the application of two different HPLC column, cation-exchange and anion-exchange respectively. The method was able to determine 15 elements quantitatively with a distinction of three arsenic and two iron species and it was validated obtaining acceptable LODs (2.67-28.7 μg L) and recoveries (80-120%). The method applicability was presented and confirmed on 5 varied sample matrix types i.e. post-glacial sediments, yerba mate (Ilex paraguariensis), soil samples located in the proximity of industry wastes disposal site, river sediments, and archaeological pottery. In addition to the above, unknown Cu, Fe, Mn and Zn species were detected in real samples (qualitative speciation analysis) and the identification was attempted according to the literature.
本文提出了一种新的双连接技术的应用，其中多模式样品导入系统（MSIS）被应用于两个高压液相色谱单元和电感耦合等离子体光学发射光谱（2 HPLC-MSIS-ICP-OES）的接口。由于分别应用了两种不同的 HPLC 柱，阳离子交换柱和阴离子交换柱，因此可以同时分离和检测非氢化物形成元素和氢化物形成元素。该方法能够定量测定 15 种元素，能够区分三种砷和两种铁物种，并通过验证获得了可接受的检测限（2.67-28.7μg/L）和回收率（80-120%）。该方法的适用性在 5 种不同的样品基质类型上得到了验证，即冰川后沉积物、巴拉圭茶（Ilex paraguariensis）、位于工业废物处理场附近的土壤样品、河流沉积物和考古陶器。此外，还在实际样品中检测到未知的 Cu、Fe、Mn 和 Zn 物种（定性形态分析），并根据文献尝试进行了鉴定。
