Off-Line SFE of Bis(2-ethylhexyl) Phthalate from PVC Materials

1995 ◽  
Vol 60 (7) ◽  
pp. 1109-1114 ◽  
Author(s):  
Karel Ventura ◽  
Richard Kovář ◽  
Milena Mikešová ◽  
Pavel Karásek ◽  
Jiří Vejrosta
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Supercritical Fluid ◽  
High Performance ◽  
Fused Silica ◽  
Bulk Liquid ◽  
Operating Parameters ◽  
Fused Silica Capillary ◽  
Ethylhexyl Phthalate ◽  
Silica Capillary

Off-line supercritical fluid extraction with pure CO2 was used to isolate and quantify bis(2-ethylhexyl) phthalate (DIOP) from PVC samples. Two modes of analyte trapping, onto an inner solid surface of a fused silica capillary (i.d. 0.5 mm) and direct bubbling through a bulk liquid (2-propanol), have been compared. Collected samples were analyzed by high performance liquid chromatography with UV detection. Quantitative recovery of over 95% was obtained in spite of limited operating parameters of home-made SFE device (maximum of pressure 30 MPa and of temperature 70 °C) for samples containing 10 or less wt.% of DIOP.

Facile one-pot preparation of chiral monoliths with a well-defined framework based on the thiol–ene click reaction for capillary liquid chromatography

RSC Advances ◽  
2016 ◽  
Vol 6 (30) ◽  
pp. 24835-24842 ◽  
Author(s):  
Peng Zhang ◽  
Jiannan Wang ◽  
Haiguan Yang ◽  
Linjing Su ◽  
Yuhao Xiong ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Click Reaction ◽  
Capillary Liquid Chromatography ◽  
Fused Silica ◽  
One Pot ◽  
Fused Silica Capillary ◽  
Capillary Liquid ◽  
Silica Capillary

A novel chiral cyclodextrin (CD) monolith was easily prepared via a one-pot process based on the thiol–ene click reaction of allyl-β-CD with pentaerythritol tetra-(3-mercaptopropionate) in a fused-silica capillary.

Sign in / Sign up

Export Citation Format

Share Document