Comparison of Supercritical CHF3 and CO2 for Extraction of Sulfonamides from Various Food Matrices
- 1 January 1996
- journal article
- research article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 68 (24) , 4507-4511
- https://doi.org/10.1021/ac960643q
Abstract
Supercritical CHF3 and methanol-modified CHF3 were compared with supercritical CO2 and methanol-modified CO2 for the extraction of sulfonamides from a spiked sand sample. In addition, a fortified nonfat milk powder, fortified egg yolk, and fortified beef liver were studied. The results showed CHF3 has higher solvating power and selectivity for extraction of two of the three sulfonamides than CO2. Extraction efficiencies of sulfamethazine and sulfadimethoxine using pure CHF3 were more than 45% higher from spiked sand samples and over 200% higher from fortified beef liver samples than pure CO2.Keywords
This publication has 14 references indexed in Scilit:
- Extraction of Organic Pollutants from Environmental Solids with Sub- and Supercritical WaterAnalytical Chemistry, 1994
- How is hydrogen-bonding influenced by solvent density? The spectroscopic study and modeling of the interaction between a proton donor and acceptor from the gas phase to supercritical fluid statesJournal of the American Chemical Society, 1993
- Warning concerning the use of nitrous oxide in supercritical fluid extractionsAnalytical Chemistry, 1993
- Study of sonication and supercritical fluid extraction of primary aromatic aminesAnalytical Chemistry, 1993
- The use of alternative fluids in on-line supercritical fluid extraction - capillary gas chromatographyJournal of High Resolution Chromatography, 1991
- Nitrous oxide versus carbon dioxide for supercritical-fluid extraction and chromatography of aminesAnalytical Chemistry, 1990
- Supercritical fluid extraction of 2,3,7,8‐tetrachlorodibenzo‐p‐dioxin from sediment samplesJournal of High Resolution Chromatography, 1989
- Clustering in supercritical fluid mixturesAIChE Journal, 1987
- Diesel fuel marine and sediment analysis: Supercritical ammonia extraction and direct fluid injection — mass spectrometryFuel, 1985
- New method for the direct analysis of supercritical fluid coal extraction and liquefactionFuel, 1983