Derivatization reactions of carbamate pesticides in supercritical carbon dioxide.

Measurement and Correlation of Ibuprofen in Supercritical Carbon Dioxide Using Stryjek and Vera EOS

Determination of mandelic acid enantiomers in urine by derivatization in supercritical carbon dioxide prior to their determination by gas chromatography.

The use of a supercritical carbon dioxide reaction medium for the determination of the (R)- and (S)-enantiomers of mandelic acid (MA) is proposed. The process involves a previous derivatization step under supercritical conditions by which the carboxyl group is esterified with methanol, then followed by acylation of the hydroxyl group in methyl MA with pentafluoropropionic anhydride in the absen...

Vetiver Oil Extraction Optimization Using Supercritical Carbon Dioxide Fluid

Solubility Prediction of Drugs in Supercritical Carbon Dioxide Using Artificial Neural Network

The descriptors computed by HyperChem® software were employed to represent the solubility of 40 drug molecules in supercritical carbon dioxide using an artificial neural network with the architecture of 15-4-1. The accuracy of the proposed method was evaluated by computing average of absolute error (AE) of calculated and experimental logarithm of solubilities. The AE (±SD) of data sets was 0.4 ...

Removal of pesticides from soil by supercritical extraction—a preliminary study

The aim of this research project is to study the applicability of supercritical extraction with carbon dioxide to the decontamination of soils containing pesticides. In this work, after a brief but important introduction to the subject, the results of a preliminary study of the extraction of atrazine from sand with supercritical carbon dioxide are reported. These results, which were obtained wi...