Synthesis of hydrophilic sorbents from N -vinylimidazole/divinylbenzene and the evaluation of their sorption properties in the solid-phase extraction of polar compounds

2004 ◽  
Vol 42 (8) ◽  
pp. 2019-2025 ◽  
Author(s):  
Núria Fontanals ◽  
Rosa Maria Marcé ◽  
Marina Galià ◽  
Francesc Borrull
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Polar Compounds ◽  
Sorption Properties ◽  
Phase Extraction

Solid Phase Extraction of Polar Compounds in Water

1997 ◽  
Author(s):  
Jeffrey A. Rutz ◽  
John R. Schultz ◽  
Richard L. Sauer
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Polar Compounds ◽  
Phase Extraction

Sol-Gel Hybrid Cyanopropyltriethoxysilane-methyltrimethoxysilane as Adsorbent for Dispersive-Micro Solid Phase Extraction of Selected Organophosphorus Pesticides in Water Samples

2014 ◽  
Vol 71 (5) ◽  
Author(s):  
Norfazilah Muhamad ◽  
Wan Aini Wan Ibrahim ◽  
Mohd Marsin Sanagi
Keyword(s):  
Solid Phase Extraction ◽  
Water Samples ◽  
Solid Phase ◽  
Organophosphorus Pesticides ◽  
Sol Gel ◽  
Polar Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Phase Extraction ◽  
Pesticides In Water ◽  
Spe Method

Commercial solid phase extraction (SPE) sorbents normally used for organophosphorus pesticides (OPPS) analysis is C18.  However, it show low retention for polar compounds and is rather expensive. The limitations are overcome through the development of a new sol-gel hybrid material, cyanopropyltriethoxysilane-methyltrimethoxysilane (CNPrTEOS-MTMOS). Sol-gel hybrid CNPrTEOS-MTMOS was successfully synthesized and applied as an adsorbent for dispersive-micro-SPE (D-µ-SPE) of three selected OPPs from several water samples. Extracted analytes were analyzed using gas chromatography-mass spectrometry.  Under the optimum conditions (100 mg CNPrTEOS-MTMOS as adsorbent, 10 mL water samples, 7 min extraction time, 300 µL methanol as desorption solvent and 3 min desorption time), the method showed excellent detection limits (0.01-0.004 µg L-1  at S/N = 3) and linear range achieved were 0.01-10 µg L-1. The CNPrTEOS-MTMOS sorbent offers an alternative sorbent material for the extraction of OPPs of various polarity. The developed D-µ-SPE method was successfully applied for the simultaneous analysis of OPPs in several water samples and results were compared with published results.  Sol-gel hybrid CNPrTEOS-MTMOS showed high potential as an alternative adsorbent for D-µ-SPE technique for OPPs.

Structure and Sorption Properties of Silica Chemically Modified with Copper Malonate

2015 ◽  
Vol 670 ◽  
pp. 252-257
Author(s):  
Evgeniya A. Pakhnutova ◽  
Yury G. Slizhov
Keyword(s):  
Gas Chromatography ◽  
Solid Phase Extraction ◽  
Aqueous Solutions ◽  
Organic Compounds ◽  
Silica Gel ◽  
Solid Phase ◽  
Sorption Properties ◽  
Phase Extraction ◽  
Chemically Modified ◽  
Structure And Sorption Properties

The sorbent with the grafted layers of malonate copper was obtained on the surface of silica gel Silokhrom S-120 by the method of successive assemblies. Structural, sorption and chromatographic properties of the investigated materials were studied by adsorption of porosimetry, gas chromatography, pH-measurement and Hammett’s method. The sorbent was used for solid phase extraction of organic compounds from aqueous solutions.

scholarly journals Preparation and Evaluation of Methacrylate-based Reversed-phase Sorbents for Solid-phase Extraction of Polar Compounds

2020 ◽  
Vol 69 (1.2) ◽  
pp. 25-30
Author(s):  
Hiroki TOMITA ◽  
Takashi SUGITA ◽  
Hiroya MURAKAMI ◽  
Yukihiro ESAKA ◽  
Yoshinori INOUE ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Polar Compounds ◽  
Reversed Phase ◽  
Phase Extraction ◽  
Preparation And Evaluation

Solid-phase extraction of polar compounds with a hydrophilic copolymeric sorbent

2004 ◽  
Vol 1030 (1-2) ◽  
pp. 63-68 ◽  
Author(s):  
Núria Fontanals ◽  
Marina Galià ◽  
Rosa Maria Marcé ◽  
Francesc Borrull
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Polar Compounds ◽  
Phase Extraction
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