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Siti Umairah, Mokhtar and Kulsing, Chadin and Althakafy, Jalal T. and Kotsos, Alex and Drummer, O. H. and Marriott, P. J. (2020) Simultaneous analysis of drugs in forensic cases by liquid chromatography-high-resolution Orbitrap Mass Spectrometry. Chromatographia, 83 (1). pp. 53-64. ISSN 0009-5893. (Published)

Siti Umairah, Mokhtar and Kulsing, Chadin and Althakafy, Jalal T. and Kotsos, Alex and Drummer, O. H. and Marriott, P. J. (2020) Simultaneous analysis of drugs in forensic cases by liquid chromatography–high‑resolution orbitrap mass spectrometry. Chromatographia, 83 (1). pp. 53-64. ISSN 0009-5893. (Published)

Siti Umairah, Mokhtar and Chin, S. -T. and Kee, C. L. and Low, M. Y. and Drummer, O. H. and Marriott, P. J. (2016) Rapid Determination of Sildenafil and Its Analogues in Dietary Supplements Using Gas Chromatography-Triple Quadrupole Mass Spectrometry. Journal of Pharmaceutical and Biomedical Analysis, 121. pp. 188-196. ISSN 0731-7085. (Published)

Siti Umairah, Mokhtar and Chin, S.-T. and Vijayaraghavan, R. and MacFarlane, D. R. and Drummer, O. H. and Marriott, P. J. (2015) Direct Ionic Liquid Extractant Injection for Volatile Chemical Analysis - A Gas Chromatography Sampling Technique. Green Chemistry, 17 (1). pp. 573-581. ISSN 1463-9270. (Published)