Tetrahydrofuran solution

Manufactured by Merck Group

Sourced in United States, Malaysia

Tetrahydrofuran solution is a clear, colorless, and volatile liquid. It is widely used as a solvent in various industrial and laboratory applications due to its ability to dissolve a wide range of organic compounds.

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Lab products found in correlation

4 protocols using tetrahydrofuran solution

Synthesis and Purification of Organometallic Compounds

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Unless otherwise specified, all syntheses and manipulations were carried out on a double-manifold Schlenk vacuum line under nitrogen atmosphere or in a nitrogen-filled glove box. Following purification, materials were stored in a nitrogen-filled glovebox prior to use unless otherwise specified. Triethyl borane (TEB) in tetrahydrofuran solution (1.0 mol/L) was purchased from Sigma-Aldrich and used without further purifications. Dodecyltrimethylammonium bromide (DTMeAB), 1,5,7-Triazabicyclo [4.4.0] dec-5-ene (TBD), Tetraphenylphosphonium chloride (PPh₄Cl), Bis(triphenylphosphine)iminium chloride (PPNCl), and Tetraphenylphosphonium bromide (PPh₄Br) were dried in a vacuum oven at 100 °C for overnight. 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU) was purified by distillation after stirring with calcium hydride for 3 days. Polyethylene glycol 2000 (P2000), methoxy polyethylene glycol 750 (M750), methoxy polyethylene glycol 2000 (M2000) and methoxy polyethylene glycol 5000 (M5000) were azeotropic dried with toluene, and preserved in glove box. Propylene oxide (PO) was purified by distillation after stirring with calcium hydride for 3 days. Tetrahydrofuran (THF) were distilled from sodium/benzophenone mixture before used. Carbonyl sulfide (COS) (99.9%, ACS Grade) was purchased from the APK (Shanghai, China) Gas Company LTD and used directly.

Yang J.L., Cao X.H., Zhang C.J., Wu H.L, & Zhang X.H. (2018). Highly Efficient One-Pot Synthesis of COS-Based Block Copolymers by Using Organic Lewis Pairs. Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry, 23(2), 298.

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Carbon Fiber Electrochemical Sensors

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CFs with
450 g/m² of area density were produced by M-Carbo (Minsk,
Belarus). PEI (M_W ∼ 750 000,
50% (w/v) solution),
poly(sodium 4-styrenesulfonate)
(PSS, M_W ∼ 1 000 000),
sodium chloride, and zinc nitrate hexahydrate were purchased from
Sigma-Aldrich (USA). 2-Nitrophnyl octyl ether (o-NPOE)
and high-molecular-weight poly(vinyl chloride) (PVC) were purchased
from Sigma-Aldrich. Hydrochloric acid (HCl) and potassium chloride
(KCl) were obtained from Fluka. Tetrahydrofuran solution (THF, 45%
in H₂O) was provided by Sigma-Aldrich. Silver conductive
glue (Kontakt, Keller) and nail polish were purchased from local stores.
HCl and KCl solutions were prepared using DI water. Acetic acid, hydrochloric
acid, and sodium acetate were acquired from LenReactiv (Russia). Mercury
nitrate monohydrate was purchased from Kubancvetmet (Russia). Sodium
ethylenediaminetetraacetate (EDTA) was purchased from Helicon (Russia).
All solutions were prepared using DI water (>18.0 MΩ cm,
Milli-Q
gradient system, Millipore, Burlington, MA).

Nikolaev K.G., Kalmykov E.V., Shavronskaya D.O., Nikitina A.A., Stekolshchikova A.A., Kosareva E.A., Zenkin A.A., Pantiukhin I.S., Orlova O.Y., Skalny A.V, & Skorb E.V. (2020). ElectroSens Platform with a Polyelectrolyte-Based Carbon Fiber Sensor for Point-of-Care Analysis of Zn in Blood and Urine. ACS Omega, 5(30), 18987-18994.

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Potassium-selective Sensor Development for Biofluid Analysis

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Urine samples were obtained from Children's City Clinical Hospital No. 5 named after N.F. Filatov (Saint Petersburg, Russian Federation). Blood serum samples were obtained from I.M. Sechenov First Moscow State Medical University (Moscow, Russian Federation). Valinomycin (potassium ionophore I), 4-tertbutylcalix[4]arene-tetraacetic acid tetraethyl ester (sodium ionophore X), potassium tetrakis(4-chlorophenyl)borate (KTpCIPB), 2-nitrophenyl octyl ether (o-NPOE), bis(2-ethylhexyl)sebacate, poly(vinyl chloride) high molecular weight (PVC), hyperbranched poly(ethyleneimine) (PEI, MW = ∼750 000, 50% (w/v) solution), poly(sodium 4-styrenesulfonate) (PSS, MW = ∼1 000 000), tetrahydrofuran solution (THF, 45% in H₂O) and sodium chloride (NaCl) were all purchased from Sigma-Aldrich(USA). Potassium chloride (KCl) and ammonium chloride (NH₄Cl) were purchased from LenReactiv (Russia). CFs with 250 g m⁻² of area density were produced by M-Carbo (Minsk, Belarus). Silver conductive glue (Kontakt, Keller) was purchased from local stores. All solutions were prepared using DI water (18.0 MΩ cm, Milli-Q gradient system, Millipore, Burlington, MA).

Pershina L.V., Grabeklis A.R., Isankina L.N., Skorb E.V, & Nikolaev K.G. (2021). Determination of sodium and potassium ions in patients with SARS-Cov-2 disease by ion-selective electrodes based on polyelectrolyte complexes as a pseudo-liquid contact phase. RSC Advances, 11(57), 36215-36221.

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Characterization of Malaysian Palm Oil

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Fresh commercial crude PMFO was obtained from a local palm oil mill in Malaysia. Sodium hydroxide (NaOH) , n-hexane, and n-heptane (HPLC grade) were purchased from Merck KGaA, Germany while 85％ phosphoric acid, ammonium monovanadate and ammonium heptamolybdate tetrahydrate were bought from Friendemann Schmidt Chemical, Germany. Natural bleaching earth (NBE) was purchased from Taiko Bleaching Earth Sdn. Bhd., Malaysia, Magnesium oxide, potassium dihydrogen phosphate, and 6N of nitric acid were acquired from Chemiz (M) Sdn. Bhd., Malaysia, Potassium hydrogen phthalate was bought from Classic Chemicals Sdn. Bhd., Malaysia. Isopropanol was purchased from Qrec (Asia) Sdn. Bhd., Malaysia, Sodium methoxide solution, tetrahydrofuran solution, and pyridine solution (HPLC grade) were purchased from Sigma-Aldrich Corporation, Germany. n-heptane (GC grade) and N-methyl-N-(trimethylsilyl) trifluoroacetamide (MSTFA) were obtained from Acros Organics, Belgium. 1-glyceryl monononadecanoin, 1,3-glyceryl dinonadecanoin and glyceryl trinonadecanoin powders were bought from Nu-Chek Prep, Inc., USA. Analytical grade α-tocopherol (α-T, 95％) used was from Sigma-Aldrich Corporation, Germany and α-tocotrienol (α-T3, 99.1％) , β-tocotrienol (β-T3, 99.9％) , γ-tocotrienol (γ-T3, 98.3％) , and δ-tocotrienol (δ-T3, 95.5％) were from Chromadex, USA.

Lau H.L.N., Tee Y.S., Chan M.K, & Teh S.S. (2022). Phosphorus Removal and Phytonutrients Retention in the Refining of Solvent Extracted Palm-Pressed Mesocarp Fiber Oil. Journal of oleo science, 71(2).

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