NDLI: Combination of solid-phase extraction and flame atomic absorption spectrometry for simultaneous preconcentration and determination of some heavy metals in real samples

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Combination of solid-phase extraction and flame atomic absorption spectrometry for simultaneous preconcentration and determination of some heavy metals in real samples

Content Provider	Semantic Scholar
Author	Asghari, Alireza Farzinia, Hajar Rajabi, Maryam Ghaedi, Mehrorang
Copyright Year	2014
Abstract	AbstractA sensitive and simple method for the simultaneous preconcentration and extraction of trace amounts of Cd2+, Co2+, Cu2+, Ni2+, and Pb2+ ions in some real samples without using organic solvent has been reported. The method is based on the adsorption of these metal ions on 4-(2-Pyridylazo) resorcinol (PAR) loaded on activated carbon (AC). The retained analytes on modified activated carbon were eluted using 3.0 mL of 3.0 mol L−1 nitric acid. The influences of the various analytical parameters including pH, amount of sorbent, sample volume, and eluent type on the recovery efficiencies were investigated. The experimental data were fitted to different conventional isotherm models including Langmuir and Freundlich isotherm. Generally, Langmuir model was found to represent the experimental isotherm data better than Freundlich model. The paper discusses the thermodynamic parameters of the adsorption (the Gibbs free energy, entropy, and enthalpy). Our results demonstrate that the adsorption process was spon...
Starting Page	5430
Ending Page	5441
Page Count	12
File Format	PDF HTM / HTML
DOI	10.1080/19443994.2013.814002
Alternate Webpage(s)	https://www.deswater.com/DWT_abstracts/vol_52_28-30/52_28-30_2014_5430.pdf
Alternate Webpage(s)	https://doi.org/10.1080/19443994.2013.814002
Volume Number	52
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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