Chai, Mee Kin and Tan, Yeong Hwang and Wong, Ling Shing (2020) [Application of microwave-assisted extraction coupled with dispersive liquid-liquid microextraction for the determination of polycyclic aromatic hydrocarbons in vegetables, Aplikasi pengekstrakan berbantukan mikrogelombang gandingan dengan pengekstrakan mikro cecair-cecair serakan bagi penentukan hidrokarbon aromatik polisiklik dalam sayur-sayuran]. Malaysian Journal of Analytical Sciences, 24 (1). pp. 53-61. ISSN 1394 - 2506
Full text not available from this repository.Abstract
Microwave-assisted extraction (MAE) coupled with dispersive liquid-liquid microextraction (DLLME) followed by gaschromatography flame ionization detector (GC-FID) for the determination of 13 PAHs in vegetable samples was developed in this study. The analytical performances of the optimized DLLME and MAE-DLLME including limit of detection (LOD), limit of quantification (LOQ), precision, accuracy, relative extraction recovery and relative extraction factor were validated and compared. The LOD of DLLME and MAE-DLLME were in the range of 0.040-0.400 and 0.0200-0.080 µg/L, respectively. For DLLME, precision and accuracy were 1.22-7.50% (RSD) and 71.77% to 90.93%, respectively; while for MAE-DLLME, were 0.77%-3.07% (RSD) and 83.65-98.42%, respectively. The relative extraction recovery was improved from 70.81% – 85.41% in DLLME to 85.79% - 99.61% in MAE-DLLME. The relative enrichment factors were ranged from 126-156 and 165 to 202 for DLLME and MAE-DLLME, respectively. The volume of extraction solvent was reduced from 50 µL to 30 µL in MAEDLLME. The overall analytical performances of MAE-DLLME is better than DLLME. The application of proposed MAEDLLME in real samples was also investigated and discussed.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | dispersive liquid-liquid microextraction, microwave-assisted extraction, polycyclic aromatic hydrocarbons, extraction solvent |
| Subjects: | Q Science > Q Science (General) Q Science > QR Microbiology |
| Divisions: | Faculty of Health & Life Sciences |
| Depositing User: | Unnamed user with email masilah.mansor@newinti.edu.my |
| Date Deposited: | 11 Nov 2020 12:08 |
| Last Modified: | 11 Nov 2020 12:08 |
| URI: | http://eprints.intimal.edu.my/id/eprint/1455 |
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