Ethylene glycol c2h6o2

All reagents were of analytical grade including FeCl₃·6H₂O, Pb(NO₃)₂·6H₂O, FeSO₄·7H₂O, CuSO₄·5H₂O, ZnCl₂, HgCl₂, CrCl₃·6H₂O, MnSO₄, CdCl₂·2.5H₂O, NaOH, CH₃COONa, ethylene glycol (C₂H₆O₂), d(+)-glucose monohydrate (C₆H₁₂O₆·H₂O), ethanediamine (C₅H₈O₂), (3-chloropropyl)triethoxysilane (C₉H₂₁ClO₃Si, KH230), acetylacetone (Acac), and HCl solution and all were purchased from Sinopharm Chemical Reagent Corporation (Shanghai, China). A target stock solution of Pb²⁺ with 1000.0 mg L⁻¹ was prepared by dissolving proper amounts of Pb(NO₃)₂·6H₂O and nitric acid in distilled water. Then the solution was further diluted to the given concentrations for testing adsorption capacity and analysing the pre-concentration process.

Silver nitrate (AgNO3, molecular weight = 170D) was obtained from Sinopharm Chemical Reagent Co., Ltd., Shanghai, China. Polylactic acid (PLA) and Polyvinyl pyrrolidone ((C6H9NO)n) were purchased from Shanghai Macklin Biochemical Co., Ltd., Shanghai, China. Staphylococcus aureus (S. aureus) were obtained from the American type culture collection. Dichloromethane (CH2Cl2, molecular weight = 85D) Ethylene glycol (C2H6O2, molecular weight = 62D) was obtained from Sinopharm Chemical Reagent Co., Ltd, Shanghai, China. Luria Bertani Broth (LB broth) was purchased from Dalian Meilun Biotechnology Co., Ltd, China. New Zealand experimental rabbits were purchased from Wuhan WQJX Bio-Technology Co., Ltd, China. Commercial nickel-titanium alloy received from ChuanMao Suzhou Metal material Co., LTD, China, was also used in this study.