Supercritical carbon dioxide extraction of ubiquinones and menaquinones from activated sludge
Supercritical carbon dioxide extraction of ubiquinones and menaquinones from activated sludge
- Journal of Chromatography A, 1113(1-2), p.14-19, 2006 .
Supercritical CO2 (scCO2)extraction, with methanol as modifier, was applied to the determination of ubiquinones and menaquinones in activated sludge. Four ubiquinones and 12 menaquinones species were identified based on retention time and UV spectrum in 0.1 g dried activated sludge. The optimum extraction conditions were at a pressure of 25MPa, a temperature of 55 .C, and 10
SUPERCRITICAL FLUID EXTRACTION
ACTIVATED SLUDGE
QUINONE PROFILE
UBIQUINONES
MENAQUINONES
Supercritical CO2 (scCO2)extraction, with methanol as modifier, was applied to the determination of ubiquinones and menaquinones in activated sludge. Four ubiquinones and 12 menaquinones species were identified based on retention time and UV spectrum in 0.1 g dried activated sludge. The optimum extraction conditions were at a pressure of 25MPa, a temperature of 55 .C, and 10
SUPERCRITICAL FLUID EXTRACTION
ACTIVATED SLUDGE
QUINONE PROFILE
UBIQUINONES
MENAQUINONES