An S-Chiral A column (4.6 mm x 250 mm, 5 [micro]m) obtained from Acchrom (Beijing, China) was employed for the enantiomer
For both human plasma and rat serum, the enantiomer
ratio was close to 1, with values ranging from 0.92 to 0.99 at both concentrations of rac-MDMA tested.
is active against males whereas the opposite enantiomer
SCF technology is an innovative method for the stereocomplexation of PDLA and PLLA enantiomers
. This study identified various SCF parameters that can affect the particle size and morphological behavior of sc-PLA, and analyzed the influence of subsequent processing such as homogenization, mechanical stirring, and sonication on these sc-PLA particles.
According to the authors, enantiomer
evaluations evidence a high cis isomers bioaccumulation.
Bupivacaine is found in two different enantiomers
: levobupivacaine--S (-) and dextrobupivacaine--R (+).
For each enantiomer
peak in the cathinone mixture chromatogram, calibration curve was constructed using the following concentration levels: 1, 5,10, 20, 40, 60, 80, and 100 [micro]g/L.
cases, too, have privileged unexpected results over obviousness to try.
In order to estimate a reliable purity by this method, the optical rotation of a pure enantiomer
must first be known, and a sufficient amount of a pure sample, for instance 20 mg or even more, must be prepared for the polarimetric measurement.
When polymer is exposed to a racemate solution the polymer adsorbs one of the enantiomer
with notable selectivity [7 8].
This makes it possible for the olfactory receptors to distinguish between enantiomers
. Many enantiomers
of fragrance molecules are perceived differently by our sense of smell.
Gonzaolez, "Development of a new method for the enantiomer
specific determination of HBCD using an ion trap mass spectrometer," Analytica Chimica Acta, vol.