O. Ismaiel

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Development and Validation of a Spectrophotometric Method for the Determination of Tramadol in Human Urine Using Liquid-Liquid Extraction and Ion Pair Formation

M. Hosny, Omnia A Ismaiel, O. Ismaiel, 2012 .

Monitoring phospholipids for assessment of ion enhancement and ion suppression in ESI and APCI LC/MS/MS for chlorpheniramine in human plasma and the importance of multiple source matrix effect evaluations.

Omnia A. Ismaiel, A. Shalaby, M. Halquist, 2008, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Evaluation of a Sequential Antibiotic Treatment Regimen of Ampicillin, Ciprofloxacin and Fosfomycin against Escherichia coli CFT073 in the Hollow Fiber Infection Model Compared with Simultaneous Combination Treatment

James L Weaver, Sabyasachy Mistry, Leonard V Sacks, 2022, Antibiotics.

Cell-type specific differences in antiretroviral penetration and the effects of HIV-1 Tat and morphine among primary human brain endothelial cells, astrocytes, pericytes, and microglia

J. McClay, K. Hauser, Omnia A Ismaiel, 2019, Neuroscience Letters.

Hybrid stationary phases: the answer to all of your matrix effect problems?

O. Ismaiel, H. T. Karnes, 2013, Bioanalysis.

Investigation of endogenous blood plasma phospholipids, cholesterol and glycerides that contribute to matrix effects in bioanalysis by liquid chromatography/mass spectrometry.

H. Karnes, H Thomas Karnes, Omnia A Ismaiel, 2010, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Assessment of matrix effects and determination of niacin in human plasma using liquid-liquid extraction and liquid chromatography-tandem mass spectrometry.

H. Karnes, Omnia A. Ismaiel, A. Shalaby, 2008, Biomedical chromatography : BMC.

Monitoring phospholipids for assessment of matrix effects in a liquid chromatography-tandem mass spectrometry method for hydrocodone and pseudoephedrine in human plasma.

H. Karnes, Omnia A. Ismaiel, A. Shalaby, 2007, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

"The hybrid stationary-phase approach has been reported to merge the simplicity of protein precipitation-only procedures with the selectivity of SPE."

O. Ismaiel, 2013 .

Determination of octreotide and assessment of matrix effects in human plasma using ultra high performance liquid chromatography-tandem mass spectrometry.

H. T. Karnes, H. Karnes, Omnia A. Ismaiel, 2011, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Intact quantitative bioanalytical method development and fit-for-purpose validation of a monoclonal antibody and its related fab fragment in human vitreous and aqueous humor using LC-HRMS

M. Halquist, Omnia A Ismaiel, M. Yuan, 2022, Analytical and Bioanalytical Chemistry.

Development of a Liquid Chromatography-Negative ESI-Tandem Mass Spectrometry Method for Ibuprofen with Minimization of Matrix Effects Associated with Phospholipids

H. Karnes, Omnia A. Ismaiel, A. Shalaby, 2008 .

New science, drug regulation, and emergent public health issues: The work of FDA’s division of applied regulatory science

D. Strauss, Zhihua Li, Wendy W Wu, 2023, Frontiers in Medicine.

LC-MS/MS Method for the Quantitative Determination of Tanespimycin and its Active Metabolite in Human Plasma: Method Validation and Overcoming an Insidious APCI Source Phenomenon

Jim X. Shen, V. Roongta, Morse Faria, 2020 .

COMPARISON OF FT-NIR TRANSMISSION AND HPLC FOR GREEN APPROACH TO DETERMINE PARACETAMOL AND ITS DEGRADATION PRODUCT 4-AMINOPHENOL IN PARACETAMOL TABLETS

Omnia A. Ismaiel, A. Shalaby, A. B. Eldin, 2015 .

Effect of Paroxetine or Quetiapine Combined With Oxycodone vs Oxycodone Alone on Ventilation During Hypercapnia: A Randomized Clinical Trial.

D. Strauss, Vikram Patel, M. Matta, 2022, JAMA.

Simultaneous determination of intracellular concentrations of tenofovir, emtricitabine, and dolutegravir in human brain microvascular endothelial cells using liquid chromatography-tandem mass spectrometry (LC-MS/MS).

K. Hauser, Omnia A Ismaiel, MaryPeace McRae, 2019, Analytica chimica acta.

Development and optimization of on-line 2-dimensional chromatographic approaches for eliminating matrix effects and improving bioanalysis of peptides in human plasma using UHPLC-MS/MS.

Omnia A. Ismaiel, Omnia A Ismaiel, Rand G. Jenkins, 2013, Drug testing and analysis.

Quantitative Bioanalysis of Intact Large Molecules using Mass Spectrometry

M. Halquist, Omnia A Ismaiel, Catherine E. DelGuidice, 2020 .