Title:Ultrafiltration-based Sample Preparation for Pharmaceutical Analysis
Volume: 17
Issue: 8
Author(s): Mustafa Çelebier*
Affiliation:
- Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara,Turkey
Keywords:
Ultrafiltration, pharmaceutical analysis, sample preparation, high-performance liquid chromatography, dendrimers,
UF-based sample.
Abstract: Pharmaceutical analysis plays an important role in all steps of drug development processes.
Analysis of active pharmaceutical ingredients in biological samples needs sample preparation techniques
to prevent the signal of the analyte from interferences coming from matrix components. Ultrafiltration
is a well-known technique used in the food and pharmaceutical industry. Commercial ultrafiltration
devices have been frequently used on proteomics and metabolomics studies for sample preparation.
In pharmaceutical analysis, these devices have been employed to analyze the free concentration of
drugs in biological fluids after filtration. However, they have been rarely used to determine the total
concentration of targeted compounds when it is compared with some other common sample preparation
techniques. Ultrafiltration-based sample preparation might be used to clean-up the sample easily
from matrix components especially on bioanalysis performed with high-performance liquid chromatography
(HPLC). In the case of using protein precipitation agents on filtration procedure, the quantitative
recovery of this non-selective unique technique is competitive with solid-phase extraction.