A chitosan–polypyrrole@Fe3O4nanocomposite for magnetic solid-phase extraction of macrolides from swine urine samples

2015 ◽  
Vol 7 (6) ◽  
pp. 2806-2812 ◽  
Author(s):  
Qie Gen Liao ◽  
Li Fang Hu ◽  
Lin Guang Luo
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Urine Samples ◽  
Phase Extraction ◽  
Swine Urine ◽  
Magnetic Solid

An effective MSPE procedure with the CS–PPy@Fe3O4nanocomposite has been developed for extraction of four macrolides. An effective MSPE-LC-MS/MS method for determination of macrolides in swine urine samples has been developed.

Determination of losartan potassium in the presence of hydrochlorothiazide via a combination of magnetic solid phase extraction and fluorometry techniques in urine samples

RSC Advances ◽  
2015 ◽  
Vol 5 (124) ◽  
pp. 102895-102903 ◽  
Author(s):  
Amir Farnoudian-Habibi ◽  
Sahar Kangari ◽  
Bakhshali Massoumi ◽  
Mehdi Jaymand
Keyword(s):  
Solid Phase Extraction ◽  
Efficient Method ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Urine Samples ◽  
Losartan Potassium ◽  
Phase Extraction ◽  
Highly Efficient ◽  
Magnetic Solid

A sensitive and highly efficient method for the determination of losartan potassium (LOS) in the presence of hydrochlorothiazide (HCTZ) via a combination of magnetic solid phase extraction (MSPE) and fluorometry techniques is suggested.

scholarly journals Magnetic Solid-Phase Extraction Using Fe3O4@SiO2 Magnetic Nanoparticles Followed by UV-Vis Spectrometry for Determination of Paraquat in Plasma and Urine Samples

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Ou Sha ◽  
Yu Wang ◽  
Xin Yin ◽  
Xiaobing Chen ◽  
Li Chen ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Urine Samples ◽  
Phase Extraction ◽  
Simple Method ◽  
Relative Standard ◽  
Plasma And Urine Samples ◽  
Magnetic Solid

A rapid and simple method was optimized and validated for the separation and quantification of paraquat, a frequently used herbicide and a leading cause of fatal poisoning worldwide, at trace levels with UV-Vis spectrophotometry in plasma and urine samples by direct magnetic solid-phase extraction. Fe3O4@SiO2 nanoparticles (NPs) were used as the magnetic solid-phase extraction agents and the paraquat absorbed on NPs was eluted using NaOH and ascorbic acid. Upon optimization, paraquat could be extracted and concentrated from various samples by 35-fold. The linear range, limit of detection (LOD), correlation coefficient (R), and relative standard deviation (RSD) could reach 15.0–400.0 μg/L, 12.2 μg/L, 0.9987, and 0.65% (n=5, c = 40.0 μg/L), respectively. The Fe3O4@SiO2 NPs could be reused up to five times. The method was successfully applied to the determination of paraquat in urine and plasma at different hemoperfusion numbers in a local hospital for the patient of paraquat poisoning. The experiment result could not only enable immediate medical intervention but also benefit patients’ survival.

Ultrasound-assisted magnetic solid-phase extraction for the determination of some transition metals in Orujo spirit samples by capillary electrophoresis

2016 ◽  
Vol 190 ◽  
pp. 263-269 ◽  
Author(s):  
Rosa M. Peña Crecente ◽  
Carlha Gutiérrez Lovera ◽  
Julia Barciela García ◽  
Carlos Herrero Latorre ◽  
Sagrario García Martín
Keyword(s):  
Capillary Electrophoresis ◽  
Transition Metals ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Phase Extraction ◽  
Magnetic Solid ◽  
Ultrasound Assisted
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