Rapid and simple magnetic solid-phase extraction of bisphenol A from bottled water, baby bottle, and urine samples using green magnetic hydroxyapatite/β-cyclodextrin polymer nanocomposite

2022 ◽  
pp. 107180
Author(s):  
Mohammad Reza Bayatloo ◽  
Saeed Nojavan
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.


Molecules ◽  
2020 ◽  
Vol 25 (12) ◽  
pp. 2924
Author(s):  
Karen A. Escamilla-Lara ◽  
Ana C. Heredia ◽  
Araceli Peña-Alvarez ◽  
Israel S. Ibarra ◽  
Enrique Barrado ◽  
...  

A magnetic solid phase extraction technique followed by liquid chromatography with a fluorescence detector for naproxen analysis in human urine samples was developed. The method includes the extraction of naproxen with a magnetic solid synthetized with magnetite and poly 4-vinylpriridine, followed by the magnetic separation of the solid phase and desorption of the analyte with methanol. Under optimal conditions, the linear range of the calibration curve was 0.05–0.60 μg L−1, with a limit of detection of 0.02 μg L−1. In all cases values of repeatability were lower than 5.0% with recoveries of 99.4 ± 1.3%. Precision and accuracy values are adequate for naproxen (Npx) analysis in urine samples.


2015 ◽  
Vol 7 (20) ◽  
pp. 8793-8800 ◽  
Author(s):  
Xiaohuan Zang ◽  
Qingyun Chang ◽  
Mengying Hou ◽  
Chun Wang ◽  
Zhi Wang

Graphene grafted magnetic microspheres were prepared and used as the adsorbent for magnetic solid phase extraction (MSPE) of bisphenol A and triclosan from water samples prior to their determination by GC-MS detection.


2020 ◽  
Vol 12 (36) ◽  
pp. 4479-4486
Author(s):  
Zhou Xu ◽  
Yanqiu Chen ◽  
Yao Tang ◽  
Maolong Chen ◽  
Wei Chen ◽  
...  

The detection of bisphenol A based on the Fe3O4@SiO2@Aptamer nanoparticles.


The Analyst ◽  
2020 ◽  
Vol 145 (4) ◽  
pp. 1433-1444
Author(s):  
Panhong Niu ◽  
Xiaofeng Lu ◽  
Bingtao Liu ◽  
Yijing Li ◽  
Xiaojing Liang ◽  
...  

Cobalt magnetic polystyrene microsphere derived carbon (C–Co@PST) with a core–shell structure was employed to investigate the bioaccumulation of bisphenol A (BPA) in HepG2 cells and zebrafishes based on a magnetic solid-phase extraction (MSPE) method.


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