Desorption of Hydrophobic Compounds from Laboratory-Spiked Sediments Measured by Tenax Absorbent and Matrix Solid-Phase Microextraction

2007 ◽  
Vol 41 (16) ◽  
pp. 5672-5678 ◽  
Author(s):  
Jing You ◽  
Sari Pehkonen ◽  
Peter F. Landrum ◽  
Michael J. Lydy
Keyword(s):  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Hydrophobic Compounds

scholarly journals Polyaniline-polypyrrole coating for solid phase microextraction

2007 ◽  
Vol 5 (3) ◽  
pp. 727-738 ◽  
Author(s):  
Vida Vickackaite ◽  
Vilma Ciuvasovaite
Keyword(s):  
Stainless Steel ◽  
Infrared Spectroscopy ◽  
Sulphuric Acid ◽  
Electrochemical Deposition ◽  
Solid Phase Microextraction ◽  
Mechanical Stability ◽  
Solid Phase ◽  
Steel Wire ◽  
Deposition Potential ◽  
Hydrophobic Compounds

AbstractA procedure for direct electrochemical deposition of polyaniline-polypyrrole blend coating on the surface of stainless steel wire was suggested. Incorporation of polyaniline and polypyrrole into the blend coating was confirmed by infrared spectroscopy. Key parameters (pyrrole, aniline, dopant and sulphuric acid concentrations and deposition potential) influencing the coating’s mechanical stability and surface homogeneity were optimised and thermostability of the coating was investigated. A possibility to apply the coating as a new fibre for solid phase microextraction was demonstrated. The coating showed better selectivity toward aromatic, hydrophobic compounds.

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