scholarly journals DETERMINATION OF FLUORIDE IN HIGHLY SALINATED WATERS BY ION CHROMATOGRAPHY METHOD WITH USE OF SOLID PHASE EXTRACTION FOR SAMPLE PREPARATION

2013 ◽  
Vol 32 ◽  
pp. 106-114
Author(s):  
Beata Kostka ◽  
Malwina Cykowska ◽  
Małgorzata Bebek ◽  
Krzysztof Mitko
Keyword(s):  
Sample Preparation ◽  
Solid Phase Extraction ◽  
Ion Chromatography ◽  
Solid Phase ◽  
Phase Extraction ◽  
Chromatography Method

Recent Trends in the Development of Green Microextraction Techniques for the Determination of Hazardous Organic Compounds in Wine

2019 ◽  
Vol 15 (7) ◽  
pp. 788-800 ◽  
Author(s):  
Natasa P. Kalogiouri ◽  
Victoria F. Samanidou
Keyword(s):  
Sample Preparation ◽  
Solid Phase Extraction ◽  
Organic Compounds ◽  
Method Development ◽  
Solid Phase ◽  
Stir Bar Sorptive Extraction ◽  
Phase Extraction ◽  
Microextraction Techniques ◽  
Hazardous Organic Compounds

Background:The sample preparation is the most crucial step in the analytical method development. Taking this into account, it is easily understood why the domain of sample preparation prior to detection is rapidly developing. Following the modern trends towards the automation, miniaturization, simplification and minimization of organic solvents and sample volumes, green microextraction techniques witness rapid growth in the field of food quality and safety. In a globalized market, it is essential to face the consumers need and develop analytical methods that guarantee the quality of food products and beverages. The strive for the accurate determination of organic hazards in a famous and appreciated alcoholic beverage like wine has necessitated the development of microextraction techniques.Objective:The objective of this review is to summarize all the recent microextraction methodologies, including solid phase extraction (SPE), solid phase microextraction (SPME), liquid-phase microextraction (LPME), dispersive liquid-liquid microextraction (DLLME), stir bar sorptive extraction (SBSE), matrix solid-phase dispersion (MSPD), single-drop microextraction (SDME) and dispersive solid phase extraction (DSPE) that were developed for the determination of hazardous organic compounds (pesticides, mycotoxins, colorants, biogenic amines, off-flavors) in wine. The analytical performance of the techniques is evaluated and their advantages and limitations are discussed.Conclusion:An extensive investigation of these techniques remains vital through the development of novel strategies and the implication of new materials that could upgrade the selectivity for the extraction of target analytes.

scholarly journals Adsorption of nitrate, nitrite, and ammonium ions on carbon adsorbents

2017 ◽  
Vol 35 (7-8) ◽  
pp. 721-727 ◽  
Author(s):  
Andrzej Gierak ◽  
Iwona Łazarska
Keyword(s):  
Solid Phase Extraction ◽  
Extraction Method ◽  
Adsorption Process ◽  
Solid Phase ◽  
Carbon Adsorbent ◽  
Carbon Adsorbents ◽  
Phase Extraction ◽  
Ammonium Ions ◽  
Chromatography Method

This work presents the results of the investigations of the adsorption process of nitrate, nitrite, and ammonium ions on carbon adsorbent with the application of the solid phase extraction method to isolate and enrich the investigated ions from aqueous solutions of the concentration below 1 mg/L. For the determination of the concentration of the analyzed ions, we applied the ion chromatography method. The sorption capacity for the tested adsorbents as well as the efficiency of the enrichment of the investigated ions were determined.

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