Applied Chemical Engineering

Optimization of oscillated gas-liquid separator for simultaneous heavy metals determination in water sample

Wameath S. Abdul-Majeed

University of Nizwa

DOI: https://doi.org/10.24294/ace.v4i1.516

Keywords: Gas-Liquid Separation, Heavy Metals Detection and Determination, Species Derivatization, DBD Plasma Atomizer

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Abstract

A technique has been developed to detect and determine multi heavy metals simultaneously in a water sample. Hydride generating technique was implemented to convert the analyte which present in the water sample (liquid phase) into another form with an improved separation coefficient, called “derivative”. This process occurred without changing the original chemical structure. Derivatives were separated from the liquid phase by applying custom made gas-liquid separator (GLS), operated with oscillation. Separated species then transferred into a die-electric barrier discharge (DBD) plasma atomizer where a fragmentation of the analyte into free atoms is occurred. The generated atoms were detected by emission spectroscopy. The presented technique was applied for detection of individual and multi heavy metals simultaneously in water sample and proved useful in terms of reducing the effect of the hydrogen generated, through the process, on suppressing the atoms signal in the DBD atomizer.

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Author Biography

Wameath S. Abdul-Majeed, University of Nizwa

Department of Chemical and Petrochemical Engineering, University of Nizwa

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