Potassium ferricyanide


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(Chem.) red prussiate of potash; a dark, red, crystalline salt, K6(CN)12Fe2, consisting of the double cyanide of potassium and ferric iron. From it is derived the ferrous ferricyanate, Turnbull's blue.

See also: Ferricyanide

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Although both techniques are simple to perform, the postcolumn procedure is more robust and less labor-intensive and time-consuming (analysis time <15 min) than precolumn methods, which usually require removal of TCA from the acid extracts with ether (15,23) or its neutralization with sodium hydroxide (24,28) before derivatization with alkaline potassium ferricyanide.
4, was prepared by dissolving potassium ferricyanide (200 mg), potassium cyanide (50 mg), and potassium dihydrogen phosphate (140 mg) in distilled water, making the volume up to 1 liter, and mixing after the addition of 0.
The 2,4-dinitrophenylhydrazine (DNPH), ammonium sulfamate, [beta]-nicotinamide adenine dinucleotide 2'-phosphate reduced ([beta]-NADPH), cacodylic acid, diethylenetriaminepentaacetic acid (DTPA), ethylenediaminetetraacetate (EDTA), glutathione reductase from Baker's yeast (GSH-R), guanidine-HCl, L-glutathione reduced (GSH), lead acetate, neocuproine, 3-(2-pyridyl)5,6-diphenyl-1,2,4-triazine-p,p'-disulfonic acid (ferrozine), pipes, potassium ferricyanide, pyrogallol, bovine serum albumin (BSA), trichloroacetic acid (TCA), and trizma base were purchased from Sigma-Aldrich Co.
The chemicals (analytical grade) linoleic acid, DMPO (5, 5-dimethyl-1- pyrroline-Noxide), DPPH (1, 1- diphenyl-2 picrylhydrazyl), Ferrous Chloride, hydrogen peroxide, Ammonium Thiocyanate, Ferric Chloride, and potassium ferricyanide etc.
reported that under the action of potassium ferricyanide the oxidative polymerization of DMP in an aqueousmedium was realized and PPO was obtained [5, 6].
Before injection onto the column, samples were derivatized by addition of 50 [micro]L of freshly prepared potassium ferricyanide in 15% sodium hydroxide (Fig.
The other chamber, the cathode, was filled with potassium ferricyanide, a chemical that acts as an oxidizing agent to round out the electrical circuit.
The third is the standard version of Murakami's reagent (10g potassium hydroxide, 10g potassium ferricyanide and 100 mL distilled water) used at 122F (50c) for 3 min to color iron phosphide dark yellow or brown and leave the cementite and ferrite colorless.
Although the chemicals are not classified as toxic, ferric ammonium citrate is considered an irritant if the powder comes in contact with the skin; potassium ferricyanide is classified as harmful.
The chemicals used were L-cysteine, D,L-homocysteine, L-methionine, adenosine (ADO), L-dithiothreitol, Triton X-100, pyridoxal 5-phosphate, and potassium ferricyanide and were purchased from Sigma Chemical Co.
The following materials were obtained from Sigma-Aldrich: pyridoxal phosphate, pyridoxal, pyridoxamine, pyridoxine, dithiothreitol, sodium bisulfate, D,L-HCY, potassium ferricyanide, and Triton X-100.
L-Homocystine, L-cysteine (L-CYS), L-methionine (LMET), dithiothreitol (DTT), Triton X-100, citric acid, potassium ferricyanide, and other common reagents for the tHCY enzymatic assay were obtained from Sigma.

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