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

Wameath S. Abdul-Majeed

Article ID: 516
Vol 4, Issue 1, 2021, Article identifier:15-22

VIEWS - 208 (Abstract) 34 (PDF)

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.


Keywords


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

Full Text:

PDF

References


Abdul-Majeed WS, Parada JHL, Zimmerman WB. Optimization of a miniaturized DBD plasma chip for mercury detection in water samples. Analytical and Bioanalytical Chemistry 2011; 401(9): 2713–2722.

Dedina J. Hydride generation atomic absorption spectrometry. Chichester: John Wiley &Sons Ltd; 1995.

Agterdenbos J, Bax D. Mechanisms in hydride generation AAS. Fresenius’ Journal of Analytical Chemistry 1986; 323: 783–787.

Chaudhary K, Inomata K, Yoshimoto M, Koinuma H. Open-air silicon etching by H2–He–CH4 flowing cold plasma. Materials Letters 2003; 57: 3406–341.

Karadjova IB, Lampugnani L, Onor M, et al. Continuous flow hydride generation-atomic fluorescence spectrometric determination and speciation of arsenic in wine. Spectrochimica Acta Part B: Atomic Spectroscopy 2005; 60: 816–823.

Zhu Z, Chan GCY, Ray SJ, et al. Microplasma source based on a dielectric barrier discharge for the determination of mercury by atomic emission spectrometry. Analytical chemistry 2008; 80: 8622–8627.




DOI: http://dx.doi.org/10.24294/ace.v4i1.516

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Creative Commons License

This site is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.