Determination trace amounts of copper, nickel, cobalt and manganese ions in water samples after simultaneous separation and preconcentration

Abstract

In the present article, a simple, rapid, sensitive and economical method has been developed for the simultaneous separation and preconcentration of the trace amounts of copper, nickel, cobalt and manganese in water samples by using modified XAD-4 resins. The sorption was quantitative in the pH range 6.0-9.0, whereas quantitative desorption occurred instantaneously with 5.0 mL of 2 M HNO 3 , and selected elements have been determined by using flame atomic absorption spectrometry. Dynamic ranges were 0.04-3.5, 0.1-6.0, 0.04-4.5 and 0.04-4.0 lg/ mL for copper, nickel, cobalt and manganese, respectively. The detection limits were 9.2, 28.6, 12.3 and 5.7 ng/mL for Cu(II), Ni(II), Co(II) and Mn(II), respectively. The effects of the experimental parameters, including the sample pH, eluent type, interference ions and breakthrough volume, were studied for separation and preconcentration of Cu(II), Ni(II), Co(II) and Mn(II) ions. Determination of these ions in standard samples confirmed that the proposed method has good accuracy. The proposed method was used for the determination of these ions in water samples.

Solid-phase extraction of heavy metal ions on bucky tubes disc in natural water and herbal plant samples

“…The pH of the working solutions in the solid-phase extraction works are one of the main parameter for the quantitative recoveries of the analytes (Rofouei et al 2009;Tavallali et al 2010;Rezaei et al 2009;Soylak and Tuzen 2006;Mousavi et al 2009;Afzali and Mohammadi 2011). The effect of pH on the recoveries of Fe(III) and Pb(II) on the BTs disc were investigated on the pH range of 4.0-12.0.…”

A novel “off-on” fluorescent probe for the detection of nickel ions and its clinical application

“…It mainly exists as divalent ions and plays a vital role in numerous enzymes ( Genchi et al, 2020 ; Anchidin-Norocel et al, 2021 ). Nickel ions are found in various tissues such as the liver, kidney, spinal cord, brain, heart, cartilage, lung connective tissue, and skin ( Afzali and Mohammadi, 2011 ; Rajivgandhi et al, 2021 ). However, excessive uptake of nickel ions can lead to various diseases, including asthma, acute pneumonitis, dermatitis, lung cancer, and sinus cancer ( Kang et al, 2017 ).…”

Optimized extraction of Pb (II) and Co (II) with glycolamide mono and di‐ionic liquids using response surface methodology

“…Cobalt is found naturally in soil, rocks, water, animals and plants. It is needed by humans in trace amounts as its deficiency leads to diseases like pernicious anemia but in large amount it has adverse effects, which include flushing, vasodilation, and cardiomyopathy in animals and humans 6–8 . Lead is naturally found in the earth crust in small amounts, and some amount is also present throughout our environment.…”

“…It is needed by humans in trace amounts as its deficiency leads to diseases like pernicious anemia but in large amount it has adverse effects, which include flushing, vasodilation, and cardiomyopathy in animals and humans. [6][7][8] Lead is naturally found in the earth crust in small amounts, and some amount is also present throughout our environment. The increased levels of lead are caused by human activities such as mining, burning of fossil fuels, and manufacturing processes.…”