scholarly journals Determination of Volatile Water Pollutants Using Cross-Linked Polymeric Ionic Liquid as Solid Phase Micro-Extraction Coatings

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 292 ◽  
Author(s):  
Yuan Tian ◽  
Xilan Feng ◽  
Yuping Zhang ◽  
Quan Yu ◽  
Xiaohao Wang ◽  
...  
Keyword(s):  
Solid Phase ◽  
Steel Wire ◽  
Molar Ratio ◽  
Solid Phase Micro Extraction ◽  
Excellent Thermal Stability ◽  
Factors Affecting ◽  
Polycyclic Aromatic ◽  
Potential Factors ◽  
Surface Modified

Ionic liquids found a wide application in catalysis and extraction due to their unique properties. Herein, ethylene glycol dimethacrylate as the cross-linker and 1-vinyl-3- butylimidazolium tetrafluoroborate as functional monomer via thermally initiated free-radical polymerization was prepared as a novel copolymer solid phase micro-extraction (SPME) coating. A surface modified stainless-steel wire was implemented as the substrate. Factors affecting the extraction performances of the copolymer, including the molar ratio of monomers to cross-linkers, the amount of porogen agent, and polymerization time were evaluated and optimized. To evaluate the extraction performance, five commonly seen polycyclic aromatic hydrocarbons (PAHs) were taken as the analytical targets. The potential factors affecting extraction efficiency were optimized. The as-prepared SPME device, coupled with gas chromatography, was successfully applied for the determination of PAHs in water samples. The wide linear range, low detection limit, good reproducibility, selectivity, and excellent thermal stability indicate the promising application of the newly developed SPME fiber in environmental monitoring as well as in other samples having complex matrices.

scholarly journals Solid phase extraction and preconcentration of Ni(II) using 1-(2-pyridylazo)-2-naphthol) (PAN) modified β-cyclodextrin butanediol diglycidyl ether polymer as a solid phase extractant

2013 ◽  
Vol 32 (1) ◽  
pp. 57 ◽  
Author(s):  
Sandeep Jaggi ◽  
Usha Gupta
Keyword(s):  
Potato Chip ◽  
Solid Phase ◽  
Diglycidyl Ether ◽  
Optimum Conditions ◽  
Factors Affecting ◽  
Relative Standard ◽  
Potential Factors ◽  
Solid Phase Extractant ◽  
Preconcentration Method

A sensitive, simple and selective preconcentration method was developed for the preconcentration of trace amounts of Ni(II) ions using 1-(2-pyridylazo)-2-naphthol (PAN) modified β-cyclodextrin butanediol diglycidyl ether polymer as a solid phase extractant. Potential factors affecting the sorption of Ni(II) were investigated. Meanwhile, the optimum conditions were established. The sorbed Ni(II) was eluted using 5 ml of 2 M HCl. The preconcentrtion factor was 70. The detection limit for Ni(II) was 1.18 ng/ml. The relative standard deviation (RSD %) was >1%. The developed method was successfully applied for the determination of trace Ni(II) in different water and potato chip samples as well as reference alloy samples.

A traceless clean-up method coupled with gas chromatography and mass spectrometry for analyzing polycyclic aromatic hydrocarbons in complex plant leaf matrices

The Analyst ◽  
2020 ◽  
Vol 145 (9) ◽  
pp. 3266-3273
Author(s):  
Xiangzi Jin ◽  
Han Yeong Kaw ◽  
Huijie Li ◽  
Zhao Wang ◽  
Jinhua Zhao ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Solid Phase ◽  
Phase Extraction ◽  
Plant Leaves ◽  
Gas Purge ◽  
Polycyclic Aromatic

This study developed a traceless clean-up method by combining solid phase extraction (SPE) with gas purge–microsyringe extraction (GP–MSE) to purify sample extracts for the determination of polycyclic aromatic hydrocarbons (PAHs) in plant leaves.

Development and comparison of direct immersion solid phase micro extraction Arrow-GC-MS for the determination of selected pesticides in water

2021 ◽  
Vol 164 ◽  
pp. 106006
Author(s):  
Seyed Mohammad Seyed Khademi ◽  
Amir Salemi ◽  
Maik Jochmann ◽  
Sasho Joksimoski ◽  
Ursula Telgheder
Keyword(s):  
Solid Phase ◽  
Solid Phase Micro Extraction ◽  
Pesticides In Water ◽  
Direct Immersion
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