Methanol (MeOH, for spectroscopy), acetone (AC, SupraSolv), acetonitrile (AN, HPLC grade), NaCl (analytical grade), HNO3 (65%, Suprapur®), and the chelating agent, diethyl dithiophosphoric acid (DDTP) with a density of 1.17 kg l−1 were obtained from Merck company (Darmstadt, Germany). A mixture of Pd(NO3)2 (1000 mg l−1) and Mg(NO3)2 (300 mg l−1) solutions, both from Merck (Darmstadt, Germany), were used as chemical modifiers. The standard solution of Pb was produced by diluting a stock solution of 1000 mg l−1 Pb supplied by Sigma Chemical Co. (St Louis, MO, USA). The working standard solution was prepared by an appropriate dilution of the stock standard solution with ultra-pure water. All the solutions were prepared with ultra-pure water (six times distillated) purchased from Shahid Ghazi Pharmaceutical Co. (Tabriz, Iran).
Mg no3
Manufactured by Merck Group
Sourced in Germany
Mg(NO3) is a chemical compound consisting of magnesium ions and nitrate ions. It is a white, crystalline solid that is soluble in water. Mg(NO3) is commonly used as a laboratory reagent and in various industrial applications.
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2 protocols using mg no3
1
Determination of Lead in Water
2
Synthesis of Ag-Mg Doped ZnO Nanoparticles
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The procedure was started by weighting and appending the Prosopis fracta leaves powder to distilled water (ratio 1 : 10) under shaking for 18 h at 150 rpm, which continued through filtering the resultant through a Whatman filter paper. Thereafter, we quantified 10 mL of extracted P. fracta to 50 mL by the inclusion of distilled water within two Erlenmeyer flasks to arrange a pure sample as well as a dual doped nanoparticles (Ag : Mg ratios is 2 : 1) sample, while the addition 0.583 g of zinc nitrate hexahydrate (0.02 M, Zn(NO3)2 ⋅ 6H2O, Merck) to each of the flasks was done as the next step. We appended the 0.012 g of magnesium nitrate hexahydrate (Mg(NO3)2 ⋅ 6H2O, Merck) and 0.06 g of silver nitrate (AgNO3, Merck) at the ratios of 1 : 2 on a heating stirrer at 80 °C for 2 h. Subsequent to drying the samples by an oven at 85 °C for 18 h, the procured raw product was put under calcination at 550 °C for 2 h. ZnO and Ag−Mg/ZnO NP are the labels given to the cases of pure, magnesium, and silver dual doped ZnO nanoparticles, respectively (Figure 7 ).
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