Authors

Beena Varghese

Publications 2

Research article Open access

Development and Validation of an RP-HPLC-FLD Method for the Determination of Biogenic Amines after Pre-column Derivatization with a New Pyrazoline Based Reagent, 3- Naphthyl-1-(4-trifluoromethyl)-5-(4-carboxy phenyl)-2-pyrazoline

Salma M.Z. Al‐Kindy, Amal Al Sabahi, Saleh N. Al‐Busafi et al. · Sultan Qaboos University Journal for Science · 2022 · 10.53539/squjs.vol27iss1pp19-34

Application of 3-Naphthyl-1-(4-trifluoromethyl)-5-(4-carboxy phenyl)-2-pyrazoline (NFCP) as a novel fluorigenic label for the derivatization of biogenic amines (BAs) and separation by liquid chromatography (LC) was investigated. Optimum conditions for the pre-column derivatization and chromatographic separation were in …

Research article Open access

Study on the Reactivity of Amino Acid Chemosensor, NPFNP, with Ethanol: Structural Elucidation through Single Crystal XRD and DFT Calculations

Beena Varghese, Saleh N. Al‐Busafi, Fakhr Eldin O. Suliman et al. · Sultan Qaboos University Journal for Science · 2017 · 10.24200/squjs.vol22iss1pp16-28

A novel ethoxy derivative of an amino acid chemosensor, 3-naphthyl-1-phenyl-5-(2ʹ-fluoro-5ʹ-nitrophenyl)-2-pyrazoline (NPFNP), has been synthesized and characterized by different spectroscopic methods. A single crystal of the ethoxy derivative, 3-naphthyl-1-phenyl-5-(2ʹ-ethoxy-5ʹ-nitrophenyl)-2-pyrazoline NPENP, has be …

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