Abstract
Headspace single-drop microextraction (HS-SDME) and dynamic headspace liquid-phase microextraction (DHS-LPME) combined with GC-FID were used to determine thirteen residual solvents in pharmaceuticals. Different extraction conditions such as microdrop volume, ionic strength of the sample, extraction time, stirring rate, extraction temperature, solvent volume, sampling volume and number of extraction cycles were studied. n-Octanol was used as the extracting solvent for both methods. Under the optimal conditions, the limits of detection for the analytes obtained by DHS-LPME and HS-SDME ranged from 1.9 to 44 μg L−1 and 0.3 to 21 μg L−1, respectively. Enrichment factors ranged 9–212 and 15–379 for DHS-LPME and HS-SDME, respectively. The relative standard deviations (RSDs, n = 5) for both methods are lower than 9.1%. The applicability of the selected method (HS-SDME) in real sample analysis was investigated.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
