In-syringe magnetic stirring-assisted dispersive liquid–liquid microextraction for automation and downscaling of methylene blue active substances assay

Talanta ◽  
2014 ◽  
Vol 130 ◽  
pp. 555-560 ◽  
Author(s):  
Ruth Suárez ◽  
Burkhard Horstkotte ◽  
Victor Cerdà
Keyword(s):  
Methylene Blue ◽  
Magnetic Stirring ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction ◽  
Active Substances

Determination of selective serotonin reuptake inhibitors in biological samples via magnetic stirring-assisted dispersive liquid–liquid microextraction followed by high performance liquid chromatography

RSC Advances ◽  
2016 ◽  
Vol 6 (56) ◽  
pp. 50710-50720 ◽  
Author(s):  
A. Golbabanezhadazizi ◽  
E. Ranjbari ◽  
M. R. Hadjmohammadi ◽  
H. Daneshinejad
Keyword(s):  
Serotonin Reuptake ◽  
High Performance ◽  
Selective Serotonin Reuptake Inhibitors ◽  
Biological Fluids ◽  
Low Cost ◽  
Serotonin Reuptake Inhibitors ◽  
Magnetic Stirring ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

This work reports an efficient, quick and low-cost procedure for the determination of serotonin reuptake inhibitors (SSRIs) in low concentration levels in biological fluids.

scholarly journals Magnetic Stirring Assisted Demulsification Dispersive Liquid–Liquid Microextraction for Preconcentration of Polycyclic Aromatic Hydrocarbons in Grilled Pork Samples

Toxics ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 8 ◽  
Author(s):  
Jitlada Vichapong ◽  
Yanawath Santaladchaiyakit ◽  
Rodjana Burakham ◽  
Supalax Srijaranai
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Sample Solution ◽  
Good Precision ◽  
Extraction Solvent ◽  
Magnetic Stirring ◽  
Polycyclic Aromatic ◽  
Dispersive Liquid Liquid Microextraction ◽  
Pork Samples ◽  
Liquid Microextraction

A simple microextraction method, magnetic stirring assisted demulsification dispersive liquid–liquid microextraction, for preconcentration of five polycyclic aromatic hydrocarbons (fluorene, phenanthrene, anthracene, fluoranthrene, and pyrene) was investigated prior to analysis by high performance liquid chromatography. In this method, a mixture of extraction solvent and disperser solvent was rapidly injected into sample solution. The magnetic stirrer agitator aided the dispersion of the extraction solvent into the sample solution. After the formation of an emulsion, the demulsifier was added, resulting in the rapid separation of the mixture into two phases. No centrifugation step was required. Several parameters affecting the extraction efficiency of the proposed method were studied, including addition of salt, kind and volume of extraction solvent, volume of demulsifier solvent, and extraction times. Under the optimum conditions, high enrichment factor, low limit of detections (LODs) and good precision were gained. The proposed method was successfully applied to analysis of polycyclic aromatic hydrocarbon residues in grilled pork samples.

Sign in / Sign up

Export Citation Format

Share Document