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Methanol meoh

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Methanol (MeOH) is a colorless, volatile, and flammable chemical compound. It is the simplest alcohol, with the chemical formula CH3OH. Methanol is commonly used as a solvent, fuel, and feedstock for the production of other chemicals.

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Lab products found in correlation

Milli q system, by Merck Group (2 mentions) Milli q purification system, by Merck Group (1 mentions) Formic acid, by Merck Group (1 mentions) Epicatechin, by Extrasynthese (1 mentions) Formic acid, by ITW Reagents (1 mentions) Acetonitrile, by ITW Reagents (1 mentions) Catechin, by Extrasynthese (1 mentions) Epicatechin gallate, by Extrasynthese (1 mentions) Quercetin 3 glucoside, by Extrasynthese (1 mentions) Myricetin 3 glucoside, by Extrasynthese (1 mentions) Myricetin 3 galactoside, by Extrasynthese (1 mentions) Isorhamnetin 3 glucoside, by Extrasynthese (1 mentions) Procyanidins b1 and b2, by Extrasynthese (1 mentions) Isorhamnetin 3 rutinoside, by Extrasynthese (1 mentions) Catechin gallate, by Extrasynthese (1 mentions) Quercetin 3 glucuronide, by Extrasynthese (1 mentions) Gallic, by Merck Group (1 mentions) Caffeic, by Merck Group (1 mentions) Formic acid, by Scharlab (1 mentions) Valsartan, by Merck Group (1 mentions)

3 protocols using methanol meoh

1

Analytical Extraction of Organic Compounds

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Methanol (MeOH)
and acetonitrile (MeCN) of analytical grade were purchased from Panreac
(Castellar del Vallès, Spain). Formic acid (HCOOH), sodium
dihydrogenphosphate (NaH2PO4), and sodium hydroxide
(NaOH), all of analytical grade, were supplied by Merck (Darmstadt,
Germany). Water (18.2 MΩ·cm) was generated using a Milli-Q
purification system from Millipore (Billerica, MA, USA).
The
buffer solution of sodium dihydrogenphosphate (NaH2PO4; 0.1 mol·L–1) used in the treatment
of samples was adjusted to pH 10 with 5 mol·L–1 NaOH. Oasis HLB polymeric cartridges (3 cm3, 60 mg) from
Waters (Milford, MA, USA) were used for solid-phase extraction. Membrane
filters (Ultra free Durapore PVDF 0.22 μm) from Millipore were
used to filter the extract before analysis.
Junza A., Saurina J., Minguillón C, & Barrón D. (2022). Metabolites in Milk after Enrofloxacin Treatment and Their Persistence to Temperature. Journal of Agricultural and Food Chemistry, 70(27), 8441-8450.
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2

Chromatographic Analysis of Polyphenols

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Acetonitrile, formic acid, and methanol (MeOH) were of HPLC-gradient grade and were purchased from Panreac (Barcelona, Spain). The water was treated in a Milli-Q system (Millipore, Milford, MA, USA). Catechin, epiCatechin, Catechin gallate, epiCatechin gallate, procyanidins B1 and B2, myricetin-3-glucoside, myricetin-3-galactoside, querce-tin-3-glucoside, quercetin-3-glucuronide, kaempherol-3-glucoside, kaempherol-3-rutinoside, isorhamnetin-3-glucoside, and isorhamnetin-3-rutinoside were purchased by Extrasynthese (Lyon, France) and gallic, caffeic, ferulic, and coutaric acids were purchased from Aldrich (Munich, Germany).
Díaz-Fernández Á., Díaz-Losada E., Vázquez-Arias A., Pujol A.P., Cardona D.M, & Valdés-Sánchez M.E. (2022). Non-Anthocyanin Compounds in Minority Red Grapevine Varieties Traditionally Cultivated in Galicia (Northwest Iberian Peninsula), Analysis of Flavanols, Flavonols, and Phenolic Acids. Plants, 12(1), 4.
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3

UHPLC-HRMS Analysis of Pharmaceuticals

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Valsartan and losartan potassium (99% purity) were purchased from Sigma Aldrich.
Iron (II) sulfate heptahydrate (FeSO4.7H2O), potassium phosphate dibasic (K2HPO4), orthophosphoric acid (H3PO4), potassium hydrogen phthalate (C8H5KO4), oxalic acid (C2H2O4) and sodium sulfate (Na2SO4) were analytical grade from Merck. The pH of the solutions was adjusted using chlorhydric acid (HCl, 98% purity). Methanol (MeOH) and acetonitrile (CH3CN) HPLC-grade were obtained from Panreac. All solutions were prepared with ultrapure water produced by a Millipore Milli-Q system with resistivity > 18 MΩ cm at 25 °C, and the experiments were carried out at least by duplicate. For UHPLC-HRMS analysis, HPLC-grade water was obtained by purifying demineralized water using a Milli-Q system from Millipore (Bedford, MA, USA). HPLC-grade methanol and acetonitrile, formic acid, acetone, and sodium hydroxide were acquired from Scharlau. Leucine enkephalin was purchased from Sigma-Aldrich (St. Louis, MO, USA).
Martínez-Pachón D., Serna-Galvis E.A., Ibañez M., Hernández F., Ávila-Torres Y., Torres-Palma R.A, & Moncayo-Lasso A. (2021). Treatment of two sartan antihypertensives in water by photo-electro-Fenton using BDD anodes: Degradation kinetics, theoretical analyses, primary transformations and matrix effects. Chemosphere, 270.
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