Enantiomeric Resolution of Ibuprofen and Flurbiprofen in Human Plasma by SPE-Chiral HPLC Methods

Title:Enantiomeric Resolution of Ibuprofen and Flurbiprofen in Human Plasma by SPE-Chiral HPLC Methods

Volume: 15 Issue: 6

Author(s): Imran Ali, Iqbal Hussain, Kishwar Saleem and Hassan Y. Aboul-Enein

Affiliation:

Keywords: Profens, chiral separation, SPE-chiral HPLC, human plasma, plasma protein bindings, enantiomers, non-sterodial anti-inflammatory drugs, prostaglandin, low gastrointestinal complications

Abstract: Chiral analysis of profens in human plasma is an important area of research due to different pharmaceutical activities of their enantiomers. The solid phase extraction of ibuprofen and flurbiprofen from human plasma was carried out on C18 cartridges by using phosphate buffer (50 mM, pH 6.0) followed by elution with methanol. Chiral-HPLC was performed on AmyCoat RP (150 mm 46 mm, 3 μm particle size) column by using different combinations of wateracetonitrile- trifluoro acetic acid at 1.5 mLmin-1 flow rate. The detection was achieved at 236 and 254 nm for ibuprofen and flurbiprofen, respectively with 27±1°C as working temperature. The chromatographic parameters i.e. retention (k), separation (α) and resolution (Rs) factors ranged from 4.54-14.42, 1.10-1.30 and 1.01-1.49, respectively. The binding differences of enantiomers of ibuprofen and flurbiprofen were 4.4 and 5.2, respectively. These values suggest that S-(+)- enantiomer of flurbiprofen is more active than ibuprofen due to low enantiomeric difference of the later drug. The developed SPE-Chiral HPLC methods were validated, which are selective, efficient and reproducible.

Cite this article as:

Ali Imran, Hussain Iqbal, Saleem Kishwar and Y. Aboul-Enein Hassan, Enantiomeric Resolution of Ibuprofen and Flurbiprofen in Human Plasma by SPE-Chiral HPLC Methods, Combinatorial Chemistry & High Throughput Screening 2012; 15 (6) . https://dx.doi.org/10.2174/138620712800563882