Comparison of supercritical CHF3 and CO2 for extraction of sulfonamides from various food matrices

Analytical Chemistry
M T CombsL T Taylor

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.

References

Jul 1, 1994·Journal of Chromatographic Science·O W Parks, R J Maxwell

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Citations

Oct 29, 1998·Journal of Chromatography. B, Biomedical Sciences and Applications·R J Maxwell, A R Lightfield
Mar 21, 2006·Food Additives and Contaminants·S WangI Kennedy
Apr 21, 1999·Food Additives and Contaminants·E AnklamF Ulberth

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