According to the obtained values it can be concluded that, in the case of PE-solvent mixtures, the more compatible solvents with this material are dispersion solvents (lower values of solvent activity coefficients and Flory Huggins parameters), followed by polar solvents
, being the less compatible the association-type solvents.
Many researchers calculated TPC from different parts of plants and most of them reported significantly higher values of TPC obtained by using polar solvents
[42,43].Comparison of the results showed that sonication extraction technique was the most efficient than other two extraction techniques used for the recovery of total flavonoids (TF) while magnetic stirring was more efficient than orbital shaker.
In polar solvents
, M-CO bond lengths of the molecules have shortened when the C-O bond lengths have elongated.
The purpose of this study is to investigate the effect of dye concentration on molecular isomerism in polar solvents
, such as dimethylformamide (DMF) and dimethyl sulfoxide (DMSO).
The [DELTA][G.sup.S.sub.A] values of polar solvents
on PEG and PEG-Tos were affected as decreasing with increasing temperature.
According to the results of the experiments described in Section 2.4, four different polar solvents
were selected for solid-liquid extraction.
McNulty, "Dispersion polymerization of styrene in polar Solvents
Some of them are found highly aggregated and precipitated in polar solvents
that do not emit light under UV excitation.
The results obtained indicated that raspberry and strawberry extracts isolated by polar solvents
due to their high RSC and the phenolics may be considered as promising additives in cheese.
Except for chloroform, the ring breathing vibration of pyridine in its halogen bonding complexes with perfluoroalkyl iodides shows larger blue shifts in polar solvents
, indicating that the halogen bonding complexes between pyridine and perfluoroalkyl iodides can be stabilized by the polar solvents
Reversed-phase chromatography uses a gradient of strong to weak polar solvents
with a non-polar packing material, whereas normal-phase chromatography uses a gradient of non-polar solvents with a polar packing material.
AK Flush has been designed with a range of polar solvents
that dissolve and remove oil along with other particulates, sludge, acids, carbon residues and moisture to prevent compressor damage.