White sorghum flour (9.33% protein) was obtained from ADM Milling Co. (Overland Park, KS, USA). Alcalase® 2.4L (Proteinase from Bacillus licheniformis Subtilisin A) was purchased from Sigma-Aldrich (St. Louis, MO, USA). 2,2-Diphenyl-1-picrylhydrazyl (DPPH), 2,2′-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), 2,2′-Azobis (2-methylpropionamide) dihydrochloride (AAPH), fluorescein, 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylicacid (Trolox), Folin & Ciocalteu phenol reagent, sodium tetraborate decahydrate (Na2B4O7), and cumene hydroperoxide were from Sigma-Aldrich (St. Louis, MO, USA). Potassium ferricyanide (K3[Fe(CN)6]) and l -serine were from Acros Organics (New Jersey, USA). Sodium dodecyl sulfate (SDS), trichloroacetic acid (TCA), o-phthaldialdehyde (OPA), and dithiothreitol (DTT) were acquired from Thermo Fisher Scientific Inc. (Ottawa, ON, USA).
Potassium ferricyanide k3 fe cn 6
Manufactured by Thermo Fisher Scientific
Sourced in United Kingdom
Potassium ferricyanide (K3[Fe(CN)6]) is an inorganic chemical compound used in various laboratory applications. It is a red crystalline salt that is soluble in water. Potassium ferricyanide is commonly used as an oxidizing agent, a redox indicator, and a component in certain analytical procedures.
Automatically generated - may contain errors
Lab products found in correlation
Trichloroacetic acid, by Merck Group (2 mentions)
Ascorbic acid, by Merck Group (2 mentions)
Potassium ferrocyanide k4fe cn 6, by Thermo Fisher Scientific (2 mentions)
Sodium chloride (nacl), by Thermo Fisher Scientific (2 mentions)
Dithiothreitol (dtt), by Thermo Fisher Scientific (1 mentions)
Cumene hydroperoxide, by Merck Group (1 mentions)
Sodium dodecyl sulfate (sds), by Thermo Fisher Scientific (1 mentions)
Trichloroacetic acid, by Thermo Fisher Scientific (1 mentions)
2 2 diphenyl 1 picrylhydrazyl dpph 2 2 azino bis 3 ethylbenzothiazoline 6 sulfonic acid diammonium salt, by Merck Group (1 mentions)
2 2 azobis 2 methylpropionamide dihydrochloride, by Merck Group (1 mentions)
L serine, by Thermo Fisher Scientific (1 mentions)
O phthaldialdehyde, by Thermo Fisher Scientific (1 mentions)
Fluorescein, by Merck Group (1 mentions)
Folin ciocalteu phenol reagent, by Merck Group (1 mentions)
Alcalase 2.4 l, by Merck Group (1 mentions)
6 hydroxy 2 5 7 8 tetramethylchroman 2 carboxylic acid trolox, by Merck Group (1 mentions)
Ammonium persulfate, by Thermo Fisher Scientific (1 mentions)
Graphite foil, by Thermo Fisher Scientific (1 mentions)
Aniline, by Thermo Fisher Scientific (1 mentions)
Iron 2 chloride, by Thermo Fisher Scientific (1 mentions)
10 protocols using potassium ferricyanide k3 fe cn 6
1
Antioxidant Potential of White Sorghum Flour
2
Electrochemical Synthesis of Polypyrrole
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Polystyrene sulfonic acid (PSS-H) (M.W. 75000, 30 wt%; Alfa Aesar), aniline (99+ %; Alfa Aesar), hydrochloric acid (HCl, 36.5–38.0%, ACS; Macron Fine Chemicals), carbon steel shim (1008–1010 carbon steel, thickness: 0.005 inch; Precision Brand Products, Inc.), graphite foil (≥99.8% metals basis, thickness 0.254 mm; Alfa Aesar), iron(III) chloride (anhydrous; Sigma Aldrich), iron(II) chloride (tetrahydrate, 98%; Alfa Aesar), iron foil (iron ≥99.99% metal basis, thickness 0.1 mm; Alfa Aesar), ammonium persulfate (ACS; J.T. Baker), deionized (DI) water (>18 MΩ cm−1), potassium ferricyanide (K3Fe(CN)6, 98.5%; Acros Organics), tetraethylammonium perchlorate (TEAP, 98%; Alfar Asear), ITO glass (100 Ω sq−1; Nanocs), Nafion 115 membrane (Fuel Cell Earth), and hydrazine (anhydrous, 98%; Sigma Aldrich). The digital hygrometer with LCD screen was purchased from Linkstyle.
3
Comprehensive Reagent Acquisition for Research
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L-Proline (>99%), PEG 6000, ninhydrin, 2,2′-azobis(2 methylpropionamidine)dihydrochloride (AAPH), (±)-6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid (Trolox) and potassium ferricyanide (K3[Fe(CN)6]) were acquired from Acros Organics (Geel, Germany). Lactic acid, and fluorescein were purchased from Panreac (Barcelona, Spain). Sodium carbonate anhydrous (Na2CO3), ferric chloride (FeCl3), Folin-Ciocalteu’s reagent, and gallic acid were acquired from VWR (Leuven, Belgium). Ascorbic acid, acetic acid, and potassium iodide were acquired from Merck (Darmstadt, Germany). Salicylic acid (SA), methyl jasmonate (MeJA), Fe3O4 nanoparticles (50–100 nm), hydrogen peroxide (H2O2), trichloroacetic acid (TCA), L- proline (≥99%), 2,2-diphenyl-1-picrylhydrazyl (DPPH), 3,4-dihydroxy-L-phenylalanine (L-DOPA), 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt tablets (ABTS), mushroom tyrosinase (EC 1.14.18.1), kojic acid, potassium persulfate (K2S2O8), potassium bromide, HPLC-MS-grade water, HPLC-MS-grade acetonitrile, luteolin, epigallocatechin gallate, protocatechuic acid, and formic acid were obtained from Sigma–Aldrich (Steinheim, Germany). Rosmarinic acid and quercetin were supplied by Extrasynthese (Genay, France), and ρ-coumaric, caffeic acid, and catechin were provided by AASC Ltd. (Southhampton, UK).
4
Synthesis and Characterization of Metal Compounds
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Sodium tungstate dihydrate (Na2WO4·2H2O) was purchased from Alfa Aesar India, and tin (II) chloride hydrate (SnCl2·2H2O) was purchased from Alfa Aesar United States. Hydrochloric acid (HCl, ~35% v/v) and ammonium sulfate ((NH4)2SO4) were purchased from Duksan. Carbon cloth (WOS1009) was obtained from CeTech Co., Ltd., and sodium sulfate (Na2SO4, anhydrous, ≥99%) was from Honeywell/Fluka. Potassium ferricyanide (K3Fe(CN)6, 99%) was purchased from Acros Organics. All of these chemicals were used without further purification. Aqueous solutions were freshly prepared with ultrapure water (resistivity of 18.2 MΩcm; Yamato, Japan) throughout the experiments. Characterization was performed over the range 2θ = 10° to 60° at room temperature with an X-ray diffractometer (XRD, Bruker, D2 phaser Karlsruhe, German) using a copper radiation source (λ = 0.154 nm), operating at 40 kV and 30 mA, with a step size of 0.05 and step time of 5 sec.; X-ray photoelectron spectroscopy (XPS, VG scientific ESCALAB 250, Birmingham, UK); and field emission scanning electron microscopy (FE-SEM, at 15 kV acceleration voltage) equipped with an energy-dispersive X-ray spectroscopy (EDS) analyzer (JSM-6500F, JEOL, Tokyo, Japan).
5
Antioxidant Assay Chemicals Characterization
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Ethanol, trichloroacetic acid (TCA), ascorbic acid, ABTS (2,2 ′ -azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt) tablets, potassium persulfate (K 2 S 2 O 8 ) and tyrosol (2-(4-hydroxyphenyl)Ethanol) were supplied by Sigma-Aldrich (Poole, UK). Folin-Ciocalteu's phenol reagent (FC reagent), sodium carbonate anhydrous (Na 2 CO 3 ) and ferric chloride (FeCl 3 ) were acquired from VWR (Leuven, Belgium). Potassium ferricyanide [K 3 (Fe(CN) 6 )], trolox [(±)-6-hydroxy-2,5, 7,8-tetramethylchromane-2-carboxylic acid], 5-(hydroxymethyl) furfural and furfural were purchased from Acros organics (Geel, Belgium). Sodium di-hydrogen phosphate monohydrate, di-sodium hydrogen phosphate anhydrous and sodium chloride anhydrous were acquired from Panreac (Barcelona, Spain). Gallic acid (GA) was supplied by Fluka (Switzerland).
6
Synthesis of Copper-Iron Prussian Blue Analogue
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Micro-size α-MoO3 (≥99.5%) and N-methyl-2-pyrrolidone were purchased from Honeywell. Sulfuric acid (98%), Phosphoric acid (85%), Polyoxyethylene (23) lauryl ether, Trifluoromethanesulfonic acid (HOTf, >99%), and 1-Ethyl-3-MethylImidazolium Bis (TriFluoroMethylSulfonyl) Imide (EMITFSI, ≥97%) were purchased from Sigma-Aldrich. Copper sulfate (CuSO4) pentahydrate and potassium ferricyanide (K3Fe(CN)6) were purchased from Fisher Scientific. Conductive carbon Super C65, polyvinylidene fluoride (PVDF, ≥99.5%), and titanium foil (thickness of 50 μm, 99.99%) were purchased from MTI corporation. All these chemicals were used as received. The carbon paper was purchased from Fuel Cells Earth and annealed at 500 °C under Argon before use. The glass-fiber separator was purchased from Whatman. Deionized water was used in all the experiments. The CuFe-PBA particles were synthesized following the reported method with some modifications. Typically, 20 mL CuSO4 solution (0.2 M) was dropped into 20 mL K3Fe(CN)6 (0.1 M) solution under magnetic stirring (800 rpm). After 6 h, the precipitate was washed with DI water three times and collected via a centrifugal force of 2012 × g. Then it was frozen and dried at −50 °C under a vacuum condition.
7
Preparation and Characterization of Nitroxide Radicals
8
Sodium Chloride Solutions for Electrolyte Membranes
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Sodium chloride (NaCl) solutions were prepared for the concentrated and dilute feeds using 99% NaCl (Alfa-Aesar, Lancashire, UK) and deionised water. For the concentrated feed, solutions of 0.5 M, typically used to represent sea water in the literature, and 4 M were prepared. For the dilute feed, a 0.02 M solution was prepared. The electrode rinse consisted of 0.1 M potassium ferricyanide (K3Fe(CN)6), 0.1 M potassium ferrocyanide (K4Fe(CN)6)(Fisher Scientific, Leicestershire, UK) and 2 M or 0.25 M NaCl (Alfa-Aesar, Lancashire, UK) depending on the concentration of the feed to limit water transport to the electrolyte and was continuously recirculated to the stacks. For experiments using the large commercially available stacks, a feed reservoir containing 5 L of electrode rinse solution was prepared and 1 L for the 10 cm × 10 cm stack and wrapped in tin foil to avoid exposure to light.
9
Synthesis and Characterization of Melamine-Zinc Nanocomposite
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Melamine (C3H6N6) and zinc acetate dihydrate [Zn(CH3COO)2·2H2O] were procured from
LOBA CHEMIE Pvt. Ltd. Mumbai, India and Thermo Fisher Scientific India
Pvt. Ltd., Mumbai, India. VacA Abs and antigens were obtained from
the Max von Pettenkofer Institute, Munich, Germany. The 23-carat gold
wire which was 0.7 mm thick and of 0.3 cm2 geometric area
was purchased from NOIDA, India. Potassium ferricyanide [K3Fe(CN)6] and potassium ferrocyanide [K4Fe(CN)6] were procured from Fisher Scientific, and (3-dimethylaminopropyl)-3-ethylcarbodiimide(EDC)-N-hydroxysuccinimide (NHS) was purchased from Sisco Research
Laboratory.
LOBA CHEMIE Pvt. Ltd. Mumbai, India and Thermo Fisher Scientific India
Pvt. Ltd., Mumbai, India. VacA Abs and antigens were obtained from
the Max von Pettenkofer Institute, Munich, Germany. The 23-carat gold
wire which was 0.7 mm thick and of 0.3 cm2 geometric area
was purchased from NOIDA, India. Potassium ferricyanide [K3Fe(CN)6] and potassium ferrocyanide [K4Fe(CN)6] were procured from Fisher Scientific, and (3-dimethylaminopropyl)-3-ethylcarbodiimide(EDC)-N-hydroxysuccinimide (NHS) was purchased from Sisco Research
Laboratory.
10
Electrochemical Analysis of Glucose
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Sodium hydroxide (NaOH), potassium chloride (KCl), and Dglucose were purchased from Sigma-Aldrich (Dorset, UK). Potassium ferricyanide (K 3 [Fe(CN) 6 ]) was purchased from Fisher Scientific (Loughborough, UK).
Solutions were prepared in double-filtered (0.05 m pore size) high purity water (18.2 M cm at 25 °C) via an ELGA Option 4 system that fed into an ELGA UHG PS system, both from ELGA Process Water (Marlow, UK). A background electrolyte solution of 0.1 M KCl was prepared for carbon working electrode-based experiments. A 5 mM potassium ferricyanide solution was prepared in 0.1 M KCl and further diluted with 0.1 M KCl to give a concentration range of 1 to 5 mM. A mobile phase of 0.1 M NaOH was prepared for the PAD analysis of D-glucose. Electrolyte solutions were sonicated (without vacuum) for 20 min to remove some of the dissolved air, since dissolved oxygen can affect sensitivity, reproducibility, and baseline noise. 49 However, with no vacuum applied, some oxygen will still be present in the electrolyte solutions. A stock solution of 1000 ppm D-glucose was prepared in purified water and further diluted in water to give a concentration range of 100 to 1000 ppm. Please do not adjust margins Please do not adjust margins
Solutions were prepared in double-filtered (0.05 m pore size) high purity water (18.2 M cm at 25 °C) via an ELGA Option 4 system that fed into an ELGA UHG PS system, both from ELGA Process Water (Marlow, UK). A background electrolyte solution of 0.1 M KCl was prepared for carbon working electrode-based experiments. A 5 mM potassium ferricyanide solution was prepared in 0.1 M KCl and further diluted with 0.1 M KCl to give a concentration range of 1 to 5 mM. A mobile phase of 0.1 M NaOH was prepared for the PAD analysis of D-glucose. Electrolyte solutions were sonicated (without vacuum) for 20 min to remove some of the dissolved air, since dissolved oxygen can affect sensitivity, reproducibility, and baseline noise. 49 However, with no vacuum applied, some oxygen will still be present in the electrolyte solutions. A stock solution of 1000 ppm D-glucose was prepared in purified water and further diluted in water to give a concentration range of 100 to 1000 ppm. Please do not adjust margins Please do not adjust margins
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