The 2,2-diphenyl-1-picrylhydrazyl (DPPH), potassium peroxydisulfate, 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS•+), 2,4,6-Tris(2-pyridyl)-S-triazine (TPTZ), ethylenediaminetetraacetic acid (EDTA), 2′,7′-dichlorodihydrofluorescein diacetate, iron sulfate heptahydrate, ferrozine, potassium peroxydisulfate, sodium phosphate dibasic, potassium phosphate monobasic, sodium acetate, iron(III) chloride hexahydrate, iron(II) chloride tetrahydrate were purchased from Sigma-Aldrich (Milan, Italy). Methanol and acetic acid were LC-MS-grade and were purchased from Merck (Darmstadt, Germany). All other chemicals and solvents used were of analytical grade.
Potassium peroxydisulfate
Manufactured by Merck Group
Sourced in Italy, Germany, United States, Brazil
Potassium peroxydisulfate is an inorganic chemical compound with the formula K2S2O8. It is a white crystalline solid that is commonly used as an oxidizing agent in various industrial and laboratory applications.
Automatically generated - may contain errors
Lab products found in correlation
Hydrogen peroxide, by Merck Group (4 mentions)
Ethanol, by Merck Group (4 mentions)
Ascorbic acid, by Merck Group (3 mentions)
Iron 3 chloride hexahydrate, by Merck Group (3 mentions)
Methanol, by Merck Group (3 mentions)
Sodium acetate, by Merck Group (3 mentions)
Acetic acid, by Merck Group (3 mentions)
Sodium hydroxide (naoh), by Merck Group (3 mentions)
Hydrochloric acid (hcl), by Merck Group (3 mentions)
2 2 azino bis 3 ethylbenzothiazoline 6 sulfonic acid, by Merck Group (2 mentions)
Diammonium salt, by Merck Group (2 mentions)
Fluorescein sodium salt, by Merck Group (2 mentions)
2 20 azobis 2 methylpropionamidine dihydrochloride aaph, by Merck Group (2 mentions)
Gallic acid, by Merck Group (2 mentions)
6 hydroxy 2 5 7 8 tetramethylchromane 2 carboxylic acid trolox, by Merck Group (2 mentions)
Ferrozine, by Merck Group (2 mentions)
Iron 2 chloride tetrahydrate, by Merck Group (2 mentions)
Sodium phosphate dibasic, by Merck Group (2 mentions)
Potassium phosphate monobasic, by Merck Group (2 mentions)
D limonene, by Extrasynthese (2 mentions)
18 protocols using potassium peroxydisulfate
1
Antioxidant Capacity Evaluation Protocol
2
Antioxidant and Metal Chelation Assays
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Folin-Ciocalteu reagent, 2,2-diphenyl-1-picrylhydrazyl (DPPH), potassium peroxydisulfate, 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS•+), 2,4,6-Tris(2-pyridyl)-S-triazina (TPTZ), ethylenediaminetetraacetic acid (EDTA), iron sulphate heptahydrate, ferrozine, potassium peroxydisulfate, sodium phosphate dibasic, potassium phosphate monobasic, sodium acetate, iron(III) chloride hexahydrate, iron(II) chloride tetrahydrate, and C7–C40 saturated alkane standard were purchased from Sigma-Aldrich (Milan, Italy). α-Pinene, 2-Carene, 3-Carene, β-Myrcene, and d -limonene were purchased from Extrasynthese (Lyon, France). Dichloromethane was GC-grade and was purchased from Merck (Darmstadt, Germany). All other chemicals and solvents used were of analytical grade.
3
Cuttlefish Bone Characterization Protocol
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Cuttlefish (Sepia pharaonis) bones were collected from a local cuttlefish processer (Hong Yu Foods Co., Ltd., Kaohsiung, Taiwan). The average size of cuttlefish caught in the winter season is 53–59 cm in length and 20–31 cm in width, the wet weight when received is ~5 kg, and the dry weight of the cuttlefish bone is ~80 g. The cuttlefish bones were buried in crushed ice during transportation and stored at −80°C until use. 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), potassium bromide, ascorbic acid, potassium peroxydisulfate, trichloroacetic acid, and hydrogen chloride were purchased from Sigma-Aldrich (St. Louis, MO, USA). Deuterium oxide and acetic acid-d4 were obtained from ACROS (Morris Plains, NJ, USA). 1,1-diphenyl-2-picrylhydrazyl (DPPH), sodium hydrogen phosphate, sodium dihydrogen phosphate, Ferrous chloride and hydrogen peroxide were obtained from Merck Co. (Darmstadt, Germany). Other chemicals used were of analytical grade.
4
Simultaneous Quantification of Sulfonamides
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All chemicals were of analytical grades and
were used without further purification. Iron(II) perchlorate, potassium
peroxymonosulfate, potassium peroxydisulfate, sodium bicarbonate,
NaOH, and perchloric acid were acquired from Sigma-Aldrich (Rehovot,
Israel). 2-(N-morpholino)ethanesulfonic acid (MES)
was obtained from Chem-Impex Int’l Inc. Dimethyl sulfoxide
was purchased from TCI. Deuterium oxide (D2O) was bought
from Tzamal D-Chem Laboratories Ltd. Sulfamethoxazole (SMX, 98%) and
phenyl methyl sulfoxide (PMSO, >98.0%) were purchased from Thermo
Fisher Scientific (Waltham). Sulfadimethoxine (SDM, >98.0%) was
acquired
from TCI America (Portland). Waters Oasis HLB cartridges (WAT106202,
6 cc/200 mg) were obtained from Waters (Milford).
were used without further purification. Iron(II) perchlorate, potassium
peroxymonosulfate, potassium peroxydisulfate, sodium bicarbonate,
NaOH, and perchloric acid were acquired from Sigma-Aldrich (Rehovot,
Israel). 2-(N-morpholino)ethanesulfonic acid (MES)
was obtained from Chem-Impex Int’l Inc. Dimethyl sulfoxide
was purchased from TCI. Deuterium oxide (D2O) was bought
from Tzamal D-Chem Laboratories Ltd. Sulfamethoxazole (SMX, 98%) and
phenyl methyl sulfoxide (PMSO, >98.0%) were purchased from Thermo
Fisher Scientific (Waltham). Sulfadimethoxine (SDM, >98.0%) was
acquired
from TCI America (Portland). Waters Oasis HLB cartridges (WAT106202,
6 cc/200 mg) were obtained from Waters (Milford).
5
Antioxidant Capacity Evaluation Methods
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The following chemicals were used in this study: Folin–Ciocalteau reagent (DinamicaQuimicaContemporanea, Diadema, SP, Brazil); sodium carbonate, potassium chloride, ethanol (EtOH); monobasic and dibasic potassium phosphate. The standards ({±})-6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid (Trolox), gallic acid, diammonium salt (ABTS) and potassium peroxydisulfate, fluorescein sodium salt and 2,20-azobis(2-methylpropionamidine) dihydrochloride (AAPH) were purchased from Sigma-Aldrich (St. Louis, MO, USA). All other reagents and solvents were of analytical grade.
6
Synthesis and Characterization of Styrene-Based Polymers
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Styrene (St), sodium 4-styrene-sulfonate (St-S), potassium peroxydisulfate (KPS), diethanolamine and n-heptane were purchased from Sigma-Aldrich Brasil Ltda. (São Paulo, Brazil). NaCl, n-hexane and K2CO3 were purchased from Vetec Química Fina Ltda. (Rio de Janeiro, Brazil). Mineral oil (viscosity: 21.09 mPa·S and density: 0.86 g/cm³, both at 25 °C) was obtained from B.Herzog (Rio de Janeiro, Brazil). All reagents were used without any previous treatment. Distilled and deionized water was used throughout the work. Sand used as the porous medium was a donation from Mineração Jundu Ltda. (Descalvado, Brazil). Crude oil was a donation from Petrobras (Rio de Janeiro, Brasil).
7
Antioxidant Capacity Evaluation Protocol
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All chemicals and solvents used were of analytical grade, unless otherwise stated. Potassium peroxydisulfate, cellulose powder, 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) (98%), 6-hydroxy-2,5,7,8-tetramethyl-chroman-2 carboxylic acid (Trolox) (97%), ethyl alcohol (96%), iron (II) sulfate heptahydrate (99%), and 5,5- dimethyl-1-pyrroline N-oxide (DMPO) (97%) were purchased from Sigma- Aldrich Chemie (Steinheim, Germany). Potassium chloride, sodium chloride, magnesium chloride, ammonium bicarbonate, potassium dihydrogen phosphate, methanol (98%), and hydrogen peroxide (30%, (w/w)) were purchased from Merck (Darmstadt, Germany). The enzymes pepsin (≥250 U/mg solid) from porcine gastric mucosa, pancreatin (4 × USP) from porcine pancreas, bile extract, protease from Streptomyces griseus, called also Pronase E (≥3.5 U/mg solid), and Viscozyme L were purchased from Sigma-Aldrich Chemie (Steinheim, Germany). Deionized water (5.6 μS/m) was used throughout the analysis and sample preparation. Syringe filters (nylon, 0.22 μm) were supplied by ISOLAB.
8
Comprehensive Phytochemical Characterization
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The following reagents were employed: acetone was acquired from Labsynth (Diadema, SP, Brazil), hexane, ethanol, methanol and methyl tert-butyl ether (MTBE) were acquired from Merck (Darmstadt, Germany), vanillin and sulfuric acid (H2SO4) were obtained from Dinâmica Química Contemporânea (Diadema, SP, Brazil), and the Folin–Ciocalteu reagent, sodium carbonate Na₂CO₃, dithiothreitol (DTT), metaphosphoric acid, potassium chloride (KCl), Tris (hydroxymethyl) aminomethane, potassium peroxydisulfate, 2,20-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), monobasic and dibasic potassium phosphate, fluorescein sodium salt, 2,20-azobis(2-methylpropionamidine) dihydrochloride (AAPH), sodium hypochlorite solution (NaOCl) and rhodamine 123 were purchased from Sigma-Aldrich (St. Louis, MO, USA). Gallic acid, ascorbic acid, lutein, zeaxanthin, β-cryptoxanthin, α-carotene β-carotene, catechin, (±)-6-hydroxy-2,5,7,8-tetramethylchromane-2-car- boxylic acid (Trolox) were used as standards and purchased from Sigma-Aldrich (St. Louis, MO, USA). Ultrapure water was obtained from a Millipore Milli-Q System (Merck Millipore, Steinfurt, Germany).
9
Synthesis of Graphene Oxide from Chitosan
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Low molecular weight chitosan (MW of 190 kDa and deacetylation degree of 75–85%), phosphorus pentoxide, potassium peroxydisulfate and lead(II) chloride 99.999% were acquired from Sigma–Aldrich (Steinheim, Germany). Graphite (natural powder), potassium permanganate (Lach–Ner, Neratovice, Czech Republic), glacial acetic acid (Chimreactiv, Bucharest, Romania), sulphuric acid 95%–97% and ethylenediaminetetraacetic acid (EDTA) were from Merck (Darmstadt, Germany). Hydrogen peroxide 35% and hydrochloric acid were from Silal Trading (Bucharest, Romania).
10
Synthesis and Characterization of Functional Nanomaterials
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