Magnetic solid-phase extraction using poly(para-phenylenediamine) modified with magnetic nanoparticles as adsorbent for analysis of monocyclic aromatic amines in water and urine samples

2015 ◽  
Vol 1415 ◽  
pp. 20-26 ◽  
Author(s):  
Amirhassan Amiri ◽  
Mehdi Baghayeri ◽  
Somayeh Nori
RSC Advances ◽  
2017 ◽  
Vol 7 (66) ◽  
pp. 41862-41868 ◽  
Author(s):  
Maosheng Zhang ◽  
Guobin Huang ◽  
Jiarong Huang ◽  
Ling Zhong ◽  
Weilan Chen

Novel octahedral structured Fe3O4@SiO2@polydimethylsiloxane magnetic nanoparticles (Fe3O4@SiO2@PDMS MNPs) have been successfully synthesized for the first time.


Bioanalysis ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 35-52
Author(s):  
Peishan Cai ◽  
Xiang Xiong ◽  
Dan Li ◽  
Yu Zhou ◽  
Chaomei Xiong

Aim: Routine therapeutic drug monitoring is highly recommended since common antidepressant combinations increase the risk of drug–drug interactions or overlapping toxicity. Materials & methods: A magnetic solid-phase extraction by using C18-functionalized magnetic silica nanoparticles (C18-Fe3O4@SiO2 NPs) as sorbent was proposed for rapid extraction of venlafaxine, paroxetine, fluoxetine, norfluoxetine and sertraline from clinical plasma and urine samples followed by ultra-HPLC–MS/MS assay. Results: The synthesized C18-Fe3O4@SiO2 NPs showed high magnetization and efficient extraction for the analytes. After cleanup by magnetic solid-phase extraction, no matrix effects were found in plasma and urine matrices. The analytes showed LODs among 0.15–0.75 ng ml-1, appropriate linearity (R ≥ 0.9990) from 2.5 to 1000 ng ml-1, acceptable accuracies 89.1–110.9% with precisions ≤11.0%. The protocol was successfully applied for the analysis of patients’ plasma and urine samples. Conclusion: It shows high potential in routine therapeutic drug monitoring of clinical biological samples.


2014 ◽  
Vol 6 (20) ◽  
pp. 8358-8367 ◽  
Author(s):  
Jing Chen ◽  
Yuzhi Wang ◽  
Xueqin Ding ◽  
Yanhua Huang ◽  
Kaijia Xu

Hydroxy functional ionic liquids have been first designed and modified on the surface of silica-coated magnetic Fe3O4 nanoparticles (MNPs) for the investigation of the extraction performance of proteins.


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