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Validation of an analytical method based on the high-resolution continuum source flame atomic absorption spectrometry for the fast-sequential determination of several hazardous/priority hazardous metals in soil

机译:基于高分辨率连续谱源火焰原子吸收光谱法快速分析土壤中几种有害/优先有害金属的分析方法的验证

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摘要

BackgroundThe aim of this paper was the validation of a new analytical method based on the high-resolution continuum source flame atomic absorption spectrometry for the fast-sequential determination of several hazardous/priority hazardous metals (Ag, Cd, Co, Cr, Cu, Ni, Pb and Zn) in soil after microwave assisted digestion in aqua regia. Determinations were performed on the ContrAA 300 (Analytik Jena) air-acetylene flame spectrometer equipped with xenon short-arc lamp as a continuum radiation source for all elements, double monochromator consisting of a prism pre-monocromator and an echelle grating monochromator, and charge coupled device as detector. For validation a method-performance study was conducted involving the establishment of the analytical performance of the new method (limits of detection and quantification, precision and accuracy). Moreover, the Bland and Altman statistical method was used in analyzing the agreement between the proposed assay and inductively coupled plasma optical emission spectrometry as standardized method for the multielemental determination in soil.
机译:背景技术本文的目的是验证一种基于高分辨率连续谱源火焰原子吸收光谱法的新分析方法,以快速顺序测定几种有害/优先使用的有害金属(Ag,Cd,Co,Cr,Cu,Ni王水中微波辅助消化后土壤中的铅,铅和锌)在配备了氙气短弧灯作为所有元素的连续辐射源的ContrAA 300(Analytik Jena)空气-乙炔火焰光谱仪上进行测定,包括棱镜预单色镜和阶梯光栅单色镜的双单色仪,以及电荷耦合设备作为检测器。为了验证有效性,进行了方法性能研究,其中包括确定新方法的分析性能(检测和定量的极限,精确度和准确性)。此外,使用Bland和Altman统计方法分析提议的测定法与电感耦合等离子体发射光谱法之间的一致性,作为土壤中多元素测定的标准化方法。

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