Multi-Element Analysis Based on an Automated On-Line Microcolumn Separation/Preconcentration System Using a Novel Sol-Gel Thiocyanatopropyl-Functionalized Silica Sorbent Prior to ICP-AES for Environmental Water Samples.
Multi-Element Analysis Based on an Automated On-Line Microcolumn Separation/Preconcentration System Using a Novel Sol-Gel Thiocyanatopropyl-Functionalized Silica Sorbent Prior to ICP-AES for Environmental Water Samples.
复制标题
DOI：
10.3390/molecules26154461
复制
发表时间：
2021-07-24
期刊：
影响因子：
--
通讯作者：
Anthemidis A
中科院分区：
文献类型：
--
作者：
Manousi N;Kabir A;Furton KG;Zachariadis GA;Anthemidis A
合成了一种溶胶-凝胶型硫氰化丙基功能化二氧化硅吸附剂，并将其用于自动在线微柱预富集平台，作为电感耦合等离子体原子发射光谱（ICP-AES）的前端，用于同时测定Cd（II）、Pb（II）、Cu（II）、Cr（III）、Co（II）、Ni（II）、Zn（II）、Mn（II）、Hg（II）和V（II）。开发的系统是基于一个易于重新包装的微柱结构集成到流动注射歧管直接耦合到ICP-AES的雾化器。将目标分析物在线提取/预富集到吸附剂表面后，用1.0 mol L−1 HNO3连续洗脱。对影响系统有效性的所有主要化学和水动力因素进行了深入的研究和优化。在优化的实验条件下，在60 s的富集时间内，目标分析物的增强因子在31 ~ 53之间。检测限为0.05 ~ 0.24 μ L−1，定量限为0.17 ~ 0.79 μ L−1。方法精密度以相对标准偏差（RSD%）表示，精密度小于7.9%。此外，通过对三种标准物质的分析，发现该方法具有良好的准确度。该方法也成功地应用于环境水样的分析。
A sol-gel thiocyanatopropyl-functionalized silica sorbent was synthesized and employed for an automated on-line microcolumn preconcentration platform as a front-end to inductively coupled plasma atomic emission spectroscopy (ICP-AES) for the simultaneous determination of Cd(II), Pb(II), Cu(II), Cr(III), Co(II), Ni(II), Zn(II), Mn(II), Hg(II), and V(II). The developed system is based on an easy-to-repack microcolumn construction integrated into a flow injection manifold coupled directly to ICP-AES’s nebulizer. After on-line extraction/preconcentration of the target analyte onto the surface of the sorbent, successive elution with 1.0 mol L−1 HNO3 was performed. All main chemical and hydrodynamic factors affecting the effectiveness of the system were thoroughly investigated and optimized. Under optimized experimental conditions, for 60 s preconcentration time, the enhancement factor achieved for the target analytes was between 31 to 53. The limits of detection varied in the range of 0.05 to 0.24 μg L−1, while the limits of quantification ranged from 0.17 to 0.79 μg L−1. The precision of the method was expressed in terms of relative standard deviation (RSD%) and was less than 7.9%. Furthermore, good method accuracy was observed by analyzing three certified reference materials. The proposed method was also successfully employed for the analysis of environmental water samples.
登录
查看更多内容
影响因子：
2
作者：
Anthemidis, Aristidis N.;Paschalidou, Magdalini
通讯作者：
Paschalidou, Magdalini
影响因子：
2.6
作者：
Manousi, Natalia;Kabir, Abuzar;Anthemidis, Aristidis
通讯作者：
Anthemidis, Aristidis
影响因子：
9.9
作者：
Menezes, ML;Moreira, JC;Campos, JTS
通讯作者：
Campos, JTS
影响因子：
7.4
作者：
Su, Cheng-Kuan;Lin, Jou-Yu
通讯作者：
Lin, Jou-Yu
影响因子：
6.1
作者：
Chen, Dahui;Hu, Bin;Huang, Chaozhang
通讯作者：
Huang, Chaozhang