Separation and Preconcentration of Nickel(II) from Drinking, Spring, and Lake Water Samples with Amberlite CG-120 Resin and Determination by Flame Atomic Absorption Spectrometry

Abstract

In this study, Amberlite CG-120 adsorbent was used for the separation/preconcentration of Ni(II) ions in commercial drinking, spring and lake water samples before detection by flame atomic absorption spectrometry. Various optimization parameters for Ni(II) determination, such as pH, eluent type and concentration, sample and eluent flow rates, amount of adsorbent, were investigated to obtain better sensitivity, accuracy, precision and quantitative recovery. Furthermore, the interference effects of some ions on the recovery efficiency of Ni(II) were also investigated. The optimum experimental parameters were obtained in the case of pH 1; 5 mL of 4 mol L-1 HCl for eluent and 0.3 g for the adsorbent amount. The limit of detection was found to be 0.58 μg L-1 and linearity ranged from 5 to 50 μg L-1. The accuracy of the method was tested by the certified reference material of TMDA-70.2 Ontario Lake Water at a 95% confidence level.

An eco-friendly ultrasound-assisted deep eutectic solvent-based liquid–phase microextraction method for enrichment and quantification of nickel in environmental samples

“…Multiple approaches to preconcentrate and separate Ni(II) have lately been published in the literature, including cloud point extraction [4][5][6][7][8][9][10][11][12], solid-phase extraction [13][14][15][16], membrane filteration [17], and co-precipitation [18][19][20].…”

Metal Nanostructures for Environmental Pollutant Detection Based on Fluorescence

“…The most widely used analytical methods to detect the presence of contaminants in real samples are: atomic absorption spectroscopy (AAS) [6,7], atomic emission spectroscopy (AES) [8,9], mass spectroscopy (MS) [10,11] and chromatography methods [12,13]. All of them have excellent sensitivity and reproducibility, however, their protocols for sample preparation are time-consuming [14][15][16][17][18] and they require very expensive and sophisticated apparatuses, handled by welltrained personnel. For these reasons, it is worth exploring possible easier and lower-cost alternatives.…”