Solid phase extraction and diffusive gradients in thin films techniques for determination of total and labile concentrations of Cd(II), Cu(II), Ni(II) and Pb(II) in Black Sea water

2011 ◽  
Vol 91 (1) ◽  
pp. 62-73 ◽  
Author(s):  
Ivanka Dakova ◽  
Penka Vasileva ◽  
Irina Karadjova ◽  
Methody Karadjov ◽  
Vera Slaveykova
Keyword(s):  
Thin Films ◽  
Solid Phase Extraction ◽  
Black Sea ◽  
Sea Water ◽  
Solid Phase ◽  
Phase Extraction ◽  
Diffusive Gradients

scholarly journals Determination of PAH in the Black Sea Water by GC/MS Following Preconcentration with Solid-Phase Extraction

2012 ◽  
Vol 19 (3) ◽  
pp. 393-403 ◽  
Author(s):  
Elka Kraleva ◽  
Vencislav Karamfilov ◽  
Georgi Hibaum
Keyword(s):  
Solid Phase Extraction ◽  
Black Sea ◽  
Sea Water ◽  
Solid Phase ◽  
Chromatographic Determination ◽  
The Black Sea ◽  
Running Waters ◽  
Phase Extraction ◽  
Concentration Technique

Determination of PAH in the Black Sea Water by GC/MS Following Preconcentration with Solid-Phase Extraction Determination of PAHs in marine coastal waters has to be carried out with great care to avoid serious losses occurring during the sampling and storage stage. This is due to the hydrophobic properties of PAHs, and their tendency to be adsorbed to surfaces they are in contact with, including suspended particulate matter. The best technique to separate PAHs is gas chromatography with mass spectrometer. Because of low concentration levels to be quantified in water samples, an enrichment step is needed before chromatographic analysis. For PAHs, several preconcentration techniques have been used, but the most concentration technique is solid-phase extraction (SPE). The main objective of this work is to adapt and implement a relatively simple and rapid method for gas chromatographic determination of individual PAHs in samples of coastal and running waters. The present work analyses the yield and precision of extraction of PAHs by solid phase extraction with using different sorbents for SPE (Bond Elut: C18 and Plexa SPE discs), the two most common methods used for aqueous samples.

Development of an on-line solid phase extraction method based on new functionalized magnetic nanoparticles. Use in the determination of mercury in biological and sea-water samples

Talanta ◽  
2016 ◽  
Vol 153 ◽  
pp. 228-239 ◽  
Author(s):  
Elisa Vereda Alonso ◽  
M.M. López Guerrero ◽  
Pilar Colorado Cueto ◽  
José Barreno Benítez ◽  
José Manuel Cano Pavón ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Solid Phase Extraction ◽  
Water Samples ◽  
Extraction Method ◽  
Sea Water ◽  
Solid Phase ◽  
Phase Extraction ◽  
Functionalized Magnetic Nanoparticles ◽  
On Line
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