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7 protocols using acetic acid

1

Synthesis and Characterization of Inorganic Nanostructures

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The chemicals and reflective substances were purchased and used without any further purification, including the iron(iii) chloride hexahydrate (FeCl3·6H2O, 99.0%, Aladdin), titanium(iv) butoxide (C16H36O4Ti, 99%, Adamas), methanol (CH3OH, 99.9%, Adamas), anhydrous sodium acetate (CH3COONa, 98.0%, Guangfu), sodium ferrocyanide (Na4Fe(CN)6, AR, Macklin), cupric nitrate trihydrate (Cu(NO3)2·H2O, AR, Xilong), bismuth nitrate pentahydrate (Bi(NO3)3·5H2O, 98%, Sigma-Aldrich), nitric acid (HNO3, 70%, Sinopharm), ammonium vanadate (NH4VO3, 99%, Adamas), hydrochloric acid (HCl, 37%, Sinopharm), ethanol (CH3CH2OH, AR, Xilong), acetic acid (CH3COOH, 99%, Adamas).
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2

Dopamine Hydrochloride Hair Coloring Protocol

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Dopamine hydrochloride, l-cysteine, sodium periodate, sodium acetate trihydrate, acetic acid and polyvinylpyrrolidone (PVP, MW 10 000 Da) were all purchased from Adamas Reagent Co., Ltd (Shanghai, China). Tris (hydroxymethyl) aminomethane, sodium carboxymethyl cellulose (CMC, 300–800 mPa s), chitosan (CTS, 200–400 mPa s), polyethylene glycol (PEG, MW 10 000 Da) and xanthan gum (XTG, USP grade) were obtained from Aladdin Reagent Co., Ltd (Shanghai, China). Carbomer 940 (C940) was purchased from Macklin Biochemical Co. Ltd. (Shanghai, China). Pluronic F127 was bought from Sigma-Aldrich (St. Louis, MO, USA). Human hair samples (#60 platinum blonde) was purchased from Ruolani Hair Products Co., Ltd (Lishui, China). The shampoo (Head & shoulders) was obtained from a supermarket in Luzhou, China. The ultrapure water used in this study was purified with an AWL-1002-H (Aquapro International Company LLC., USA) ultra-pure water system.
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3

Fabrication of Perovskite Solar Cell Components

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Titanium (IV) isopropoxide (TTIP, 97%, ρ= 0.96 g/mL at 20°C (lit.)), polyvinyl alcohol (PVA, weight average molecular weight Mw ~ 30,000 g/mol), cellulose acetate (CA, number average molecular weight Mn ~30,000 g/mol), polymethyl methacrylate (PMMA, mass average molecular weight Mw ~35,000 g/mol), and N, N-Dimethylacetamide (DMAc, 99.8%, anhydrous) were all purchased from Sigma-Aldrich (Shanghai, China). Acetylacetone (HAcAc, 99%, ρ= 0.975 g/mL at 25°C (lit.)), Acetic acid (AcOH, 99%, ρ= 0.975 g/mL) were purchase from Adamas (Shanghai, China). Acetone (99.5%) and n-butyl acetate (BAC, 99.5%), were purchased from Greagent (Shanghai, China). N, N-Dimethylformamide (DMF, 99.5%, anhydrous) and acetonitrile (99%) were purchased from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China). The precursors, e.g., CsI, FAI, PbBr2, MABr, and PbI2, used to construct the light-absorbing perovskite active layer, were purchased from Xi’an Polymer Light Technology Corporation (Xi’an, China). All the materials were used as received, without any purification.
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4

Extraction and Analysis of Jujube Aroma

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Seven jujubes (Ziziphusjujuba Mill., moisture content of 20%), respectively originating from Xinjiang, Shandong, Hebei, Shanxi, Henan provinces, China, were purchased from Linze Agricultural trade company (Gansu Province, China). The Torayca®type T300B-3000 carbon fiber was provided by TORAY Industries, Inc.(Ehime, Japan). The 1.3 cm long stainless hollow tube (i.d. 1.0 mm) was tailored from the syringe needle (Shanghai high pigeon industry &trade co., LTD, China). Chemicals (99% purity) were provided by Adamas Reagent Co., Ltd (Basel, Switzerland), including acetic acid, ethyl acetate, ethyl caproate, and octyl acetate. Damascone (> 90% purity) from Sigma-aldrich; acetophenone-α,β-13C2 (> 99% purity) from Absin Bioscience Inc.(Shanghai, China); dimethyldichlorosilane, toluene and acetone from Sinopharm Chemical Reagent Co. Ltd (Shanghai, China); methanol (> 99% purity) from Merck (Darmstadt, Germany).
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5

Quantitative Analysis of Phthalates in Baijiu

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The commercial AC JT-207 was purchased from Hwrk Chemical Co., Ltd. (Beijing, China). Jiang-flavored Baijiu I (alcohol content 53 v%, Baijiu I) and Jiang-flavored Baijiu II (alcohol content 53 v%, Baijiu II) were purchased from a local store (Beijing, China). The 4-octanol (internal standard) was purchased from Tokyo Chemical Industry Co., Ltd. (Tokyo, Japan). The hydrochloric acid (HCl, chemical purity) was purchased from the Beijing Chemical Plant (China). The sodium hydroxide (NaOH) was purchased from Sinopharm Chemical Reagents Co., Ltd. (Beijing, China). The pyridine was purchased from Mindray Chemical Technology Co., Ltd. (Shanghai, China). The ethanol and methanol were provided by Titan Technology Co., Ltd. (Shanghai, China). The acetic acid and DBP were obtained from Adamas Reagent Co., Ltd. (Shanghai, China). The DMP and dipropyl phthalate (DPP) were supplied by Tokyo Chemical Industry Co., Ltd. (Tokyo, Japan). The DEP was supplied by Maclin Biochemical Technology Co., Ltd. (Shanghai, China). The DEHP and DnOP were purchased from Aladdin Biochemical Technology Co., Ltd. (Shanghai, China). All chemicals were of analytical purity, except hydrochloric acid, which was used as received without further purification.
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6

Recombinant Protein Expression in E. coli

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Escherichia coli strain BL21 (DE3) plysS and pET30a vector were obtained from Novagen (La Jolla, CA). All restriction enzymes and ExTaq Polymerase were purchased from TaKaRa Biotechnology (Liaoning China). Water was generated by using a Milli‐Q‐Gradient purification system (Millipore). Medium components tryptone and yeast extract were purchased from Oxoid. Isopropylb‐d‐1‐thiogalactopyranoside (ITPG, >99 %), ampicillin sodium salt (>99 %), kanamycin sulfate (>99 %), and meta‐chloroperbenzoic acid were purchased from Sigma‐Aldrich. Thioanisole was purchased from J&K Scientific and used without further purification. Acetic acid, hexanoic acid, heptanoic acid, octanoic acid, 2‐phenylpropionic acid, n‐butanoicacid, oxone, hydrogen peroxide were purchased form Adamas‐beta. All other chemicals and reagents were purchased from J&K Scientific, China.
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7

Titanium Dioxide Superhydrophobic Coating

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Titanium dioxide (TiO2, spherical particles, particle size 20~30 nm) and polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP, 99%) were supplied by Aladdin, Wallingford, CT, USA. Tetrabutyl titanate (TBT, AR, 98%), acetic acid (CH3COOH, 99.9%), 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTES, 97%), hydrochloric acid (HCl, AR, 36~38%), sodium hydroxide (NaOH, ACS, 97%), sodium chloride (NaCl, AR), and n-hexadecane (RG, 98%) were all supplied by Adamas, Emeryville, CA, USA. Anhydrous ethanol (EtOH, AR, 99.5%) and mineral oil (RG, 99%) were supplied by Greagent, Ringoes, NJ, USA. Soybean oil was supplied by Luhua, Yantai, China.
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