Layer-by-layer coated molecular-imprinted solid-phase microextraction fibers for the determination of polar compounds in water samples

RSC Advances ◽  
2016 ◽  
Vol 6 (96) ◽  
pp. 94098-94104 ◽  
Author(s):  
Maosheng Zhang ◽  
Jiarong Huang
Keyword(s):  
Water Samples ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Polar Compounds ◽  
Selective Extraction ◽  
Layer By Layer ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

In this study, the selective extraction of polar compound in water samples was reported using molecular-imprinted solid-phase microextraction (MISPME) combined with dispersive liquid–liquid microextraction (DLLME) within situderivatization.

Comparison between dispersive liquid–liquid microextraction and ultrasound-assisted nanoparticles-dispersive solid-phase microextraction combined with microvolume spectrophotometry method for the determination of Auramine-O in water samples

RSC Advances ◽  
2015 ◽  
Vol 5 (49) ◽  
pp. 39084-39096 ◽  
Author(s):  
Arash Asfaram ◽  
Mehrorang Ghaedi ◽  
Alireza Goudarzi ◽  
Mustafa Soylak
Keyword(s):  
Water Samples ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Solid Phase Micro Extraction ◽  
Real Samples ◽  
Auramine O ◽  
Ultrasound Assisted ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

Novel dispersive solid phase micro-extraction and dispersive liquid–liquid micro-extraction determination of Auramine-O content in various real samples.

Solid-phase extraction combined with dispersive liquid–liquid microextraction for the spectrophotometric determination of ultra-trace amounts of azide ion in water samples

2014 ◽  
Vol 6 (15) ◽  
pp. 5784-5791 ◽  
Author(s):  
Ali Reza Zarei ◽  
Reihaneh Hajiaghabozorgy
Keyword(s):  
Solid Phase Extraction ◽  
Spectrophotometric Determination ◽  
Water Samples ◽  
Solid Phase ◽  
Phase Extraction ◽  
Azide Ion ◽  
Ultra Trace ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

Schematic of the preparation of surfactant-coated MWCNT/nano-Fe3O4composites and their application for the SPE–DLLME procedure.

Task-specific ionic liquid based in situ dispersive liquid–liquid microextraction for the sequential extraction and determination of chromium species: optimization by experimental design

RSC Advances ◽  
2015 ◽  
Vol 5 (74) ◽  
pp. 60621-60629 ◽  
Author(s):  
Susan Sadeghi ◽  
Ali Zeraatkar Moghaddam
Keyword(s):  
Ionic Liquid ◽  
Absorption Spectrometry ◽  
Selective Extraction ◽  
Chromium Species ◽  
Flame Atomic Absorption ◽  
Dispersive Liquid Liquid Microextraction ◽  
Task Specific Ionic Liquid ◽  
Liquid Microextraction

An optimised task specific ionic liquid-basedin situdispersive liquid–liquid microextraction (in situTSIL-DLLME) with flame atomic absorption spectrometry (FAAS) methodology was developed for the selective extraction of Cr(iii) and Cr(vi) species.

Chitosan–Zinc Oxide Nanoparticles Combined with Dispersive Liquid–Liquid Microextraction for the Determination of BTEX in Water Samples

2015 ◽  
Vol 68 (3) ◽  
pp. 481 ◽  
Author(s):  
Mostafa Khajeh ◽  
Leyla Azarsa ◽  
Mansoureh Rakhshanipour
Keyword(s):  
Zinc Oxide ◽  
Water Samples ◽  
Zinc Oxide Nanoparticles ◽  
Solid Phase ◽  
Oxide Nanoparticles ◽  
Flame Ionization ◽  
Relative Standard ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

In this study, chitosan–zinc oxide nanoparticles were used as an adsorbent matrix for solid-phase extraction and combined with dispersive liquid–liquid microextraction (SPE–DLLME) for determination of benzene, toluene, ethylbenzene, and xylene isomers (BTEX) in water samples. The eluent of SPE was used as the dispersive solvent of the DLLME for further purification and enrichment of the BTEX prior to gas chromatography-flame ionization detector analysis. The effect of variables, including amount of adsorbent, sample and eluent flow rate, type and volume of extraction and dispersive solvent, salt concentration, and extraction time, was investigated and they were optimized. Under the optimum conditions, good linearity for all BTEX with determination coefficients in the range of 0.9993 < r2 < 0.9997, suitable precision (1.4 % < RSD <1.9 %; where RSD refers to relative standard deviation), and low detection limits (0.5–1.1 µg L–1) were achieved. The current chitosan–zinc oxide nanoparticles SPE–DLLME procedure combines the advantages of SPE and DLLME, and was applied for determination of BTEX in water samples and acceptable recoveries were obtained.

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