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7 protocols using acetone

1

Bioactive Compound Analysis Protocol

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The following chemicals were used for analysis of the content of bioactive compounds: sodium bicarbonate (Honeywell), potassium sodium tartrate tetrahydrate (Merck), potassium hydroxide (Merck), phenolphthalein (Avantor), Sudan III (Waldeck), sodium hydroxide (Avantor), copper(II) sulphate (Avantor), mercuric chloride (Avantor), mercuric nitrate (Sigma Aldrich), mercurous nitrate (Alfa Aesar), nitric acid (Merck), sulphuric acid (Avantor), ammonium hydroxide (Supelco), ninhydrin (Sigma Aldrich), acetone (Stanlab), chloroform (Avantor), acetic acid (Supelco), acetic anhydride (Avantor), picric acid (Sigma Aldrich), tannic acid (Alfa Aesar), mercury(II) chloride (Avantor), bismuth subnitrate (Honeywell), glacial acetic acid (Supelco), potassium iodide (Sigma Aldrich), hydrochloric acid (Avantor), iodine (Sulpeco), multi-elemental stock ICP standard solution (no. XVI, Merck), single ICP stocks of As, Hg, P, S, and Se (Merck).
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2

Synthesis and Characterization of Furan-Based Monomers

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All reagents were commercially available materials and were used without further purification. Maleic anhydride (≥98%) and dibutyltin dilaurate (95%) were provided by Alfa Aesar (Haverhill, MA, USA). Furan (≥99%) was obtained from Fluka. Hydroquinone (≥99%), 2-hydroxypropyl acrylate (HPA) (mixture of the isomers, 95%), 2-hydroxyethyl methacrylate (HEMA) (97%), hexamethylene diisocyanate (for synthesis), polyethylene glycol PEG 1000 (for synthesis), and 2-hydroxypropyl methacrylate (HPMA) (mixture of hydroxypropyl and 2-hydroxypropyl methacrylates, ≥97%) were purchased from Sigma-Aldrich (Steinheim am Albuch, Germany). Furfuryl alcohol (98%) and isophorone diisocyanate (98%) were provided by Acros Organics (Geel, Belgium). 2-hydroxyethyl acrylate (HEA) was kindly donated by Cognis Performance Chemicals (Hythe, UK). Chempur (Piekary Śląskie, Poland) provided analytical-grade ethanolamine and triethanolamine. Diethyl ether (99.5%) and anhydrous ethanol p.a. (99.8%) were provided by Avantor Performance Materials Poland S.A. (POCH, Gliwice, Poland). Acetone, isopropanol, xylene, toluene, and dichloromethane of high purity were purchased from StanLab (Lublin, Poland).
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3

Polylactide and PEG Synthesis

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Acetone and chloroform were purchased from STANLAB (Lublin, Poland). Polylactide (type 2002D, average molecular weight = 79 kDa) was delivered in the form of pellets by Nature Works® (Minnetonka, MN, USA). Poly(ethylene glycol) (Mw = 1500 g·mol−1) was purchased from Sigma-Aldrich (Steinheim, Germany).
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4

Antioxidant Potential of Plant Extracts

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All chemicals and reagents used in this study were of analytical or HPLC grade. 2,2-Diphenyl-1-picryhydrazyl hydrate stable radical (DPPH, 95%), 2,2-azino-bis(3-ethyl- benzothiazoline-6-sulfonic acid) diammonium salt (ABTS, 98%), 2.0 M Folin–Ciocalteu phenol reagent, KCl, Na2HPO4, K2S2O8, NaCl, Na2CO3, and HPLC grade acetonitrile were purchased from Merck (Darmstadt, Germany); KH2PO4 from Jansen Chimica (Beerse, Belgium); 2,4,6-tripyridyl-s-triazine (TPTZ) from Fluka Chemicals (Steinheim, Switzerland). Acetone, methanol (MeOH), n-hexane and acetic acid were obtained from StanLab (Lublin, Poland); agricultural origin ethanol (96.6%) from Stumbras (Kaunas, Lithuania). Dimethyl sulfoxide (DMSO), n-butanol and ethyl acetate were purchased from Sigma-Aldrich (Saint-Quentin-Fallavier, France). Reference compounds, mangiferin and hydroxytormentic acid were purchased from Sigma Aldrich (Steinheim, Germany), and tormentic acid from ChemFaces (Wuhan, Hubei, China).
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5

Electrochemical Characterization of Ti-Mn Alloys

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Acetone, isopropanol, and methanol were purchased from P.P.H. “STANLAB” Sp. J. (Lublin, Poland), while ethylene glycol (EG) from CHEMPUR and ammonium fluoride from ACROS ORGANICS. Technical grade Ti foils and Ti–Mn alloys with 5, 10 and 15 wt. % of manganese content were provided by HMW-Hauner Metallische Werkstoffe (Röttenbach, Germany). Deionized (DI) water with conductivity of 0.05 μS was used to prepare all aqueous solutions.
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6

Carotenoid and Isoprenoid Quinone Extraction

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Acetone and methanol used for the extraction of carotenoids and isoprenoid quinones were purchased from Stanlab (Lublin, Poland). HPLC grade methanol and methyl tert-butyl ether (MTBE) were purchased from J.T. Baker (Deventer, The Netherlands). Ultra-pure water was obtained from a Milli-Q water purification system (Millipore Corp., Bedford, MA, USA). Chromacol PTFE syringe filters (0.2 μm pore size) were purchased from Shim-Pol (Izabelin, Poland).
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7

Solvent Preparation for Analytical Assays

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Gallic acid, 96.6% ethanol, 2-propanol, disodium hydrogen phosphate, dihydrogen sodium phosphate (Chempur, Piekary Śląskie, Poland), HCl, NaOH (POCh, Gliwice, Poland), acetone, n-hexane, methanol, DPPH -2,2-diphenyl-1-picrylhydrazyl, acetonitrile (Sigma-Aldrich, St. Louis, MO, USA), acetone (StanLab, Lublin, Poland) were of analytical-reagent grade and were used without further purification. Water was three times distilled in a quartz apparatus. Solvents were filtered through a (0.22 μm) membrane filter (Millipore, Bedford, USA).
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