A Reliable and Straightforward Combination of vortex-assisted Dispersive Magnetic solid-phase Extraction with Direct Sorbent Sampling for Highly Sensitive Silver Determination in Water Samples Using Flame and Metal Furnace AAS.

IF 2.7 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Bulletin of Environmental Contamination and Toxicology Pub Date : 2024-09-21 DOI:10.1007/s00128-024-03955-1

Diego Prudencio Dos Santos, Milena do Prado Ferreira, Kristiany Moreira Diniz, Mariana Gava Segatelli, Eduardo Costa de Figueiredo, César Ricardo Teixeira Tarley

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Abstract

In the present paper, the assessment of vortex-assisted dispersive magnetic solid-phase extraction using amino-functionalized mesoporous combined with direct magnetic sorbent sampling (DMSS) in flame or furnace atomic absorption spectrometry (FAAS or FF-AAS) was demonstrated for highly sensitive silver determination in water samples. The developed method showed significant enrichment factors compared to conventional pneumatic nebulization by FAAS, 607 for DMSS-FF-AAS and 114 for DMSS-FAAS. The analytical curve showed linearity in the range from 5.0 to 70.0 µg L^- 1 and 1.0 to 15.0 µg L^- 1 and limits of detection of 0.59 and 0.09 µg L^- 1 for DMSS-FAAS and DMSS-FF-AAS, respectively. The intra and inter-day precision evaluated as a percentage of the relative standard deviation (RSD,%) ranged from 1.89 to 4.71% for levels of 25.0 and 65.0 µg L^- 1. The method was applied in different kinds of water samples without matrix effects, yielding recovery values from 90 to 110%.

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将涡旋辅助分散磁性固相萃取与直接吸附剂取样可靠而直接地结合起来，利用火焰和金属炉原子吸收光谱法高灵敏地测定水样中的银。

本文对火焰或熔炉原子吸收光谱法（FAAS 或 FF-AAS）中使用氨基功能化介孔结合直接磁性吸附剂取样（DMSS）的涡流辅助分散磁性固相萃取法进行了评估，以实现水样中银的高灵敏度测定。与传统的气动雾化 FAAS 方法相比，所开发的方法显示出明显的富集因子，DMSS-FF-AAS 为 607，DMSS-FAAS 为 114。分析曲线显示，DMSS-FAAS 和 DMSS-FF-AAS 的线性范围分别为 5.0 至 70.0 µg L- 1 和 1.0 至 15.0 µg L- 1，检出限分别为 0.59 和 0.09 µg L-1。对于 25.0 和 65.0 µg L- 1 的水平，日内和日间精密度的相对标准偏差（RSD,%）为 1.89% 至 4.71%。该方法适用于不同种类的水样，不受基质影响，回收率为 90% 至 110%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of Environmental Contamination and Toxicology 环境科学-毒理学

CiteScore

5.60

自引率

3.70%

发文量

230

审稿时长

1.7 months

期刊介绍： The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.