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Description: Used with ICP-MS, ICP-OES, DCP, GFAA, and AA

Catalog Number: BDH89800-326

Supplier: BDH

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Description: Used with ICP-MS, ICP-OES, DCP, GFAA, and AA

Catalog Number: BDH89800-136

Supplier: BDH

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Description: Used with ICP-MS, ICP-OES, DCP, GFAA, and AA

Catalog Number: BDH89800-308

Supplier: BDH

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Description: Used with ICP-MS, ICP-OES, DCP, GFAA, and AA

Catalog Number: BDH89800-290

Supplier: BDH

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Description: Used with ICP-MS, ICP-OES, DCP, GFAA, and AA

Catalog Number: BDH82025-958

Supplier: BDH

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Description: Used with ICP-MS, ICP-OES, DCP, GFAA, and AA

Catalog Number: BDH89800-134

Supplier: BDH

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Description: SDS is an anionic detergent and wetting agent that is effective in both acid and alkaline solutions.
Used to solubilize and denature proteins for denaturing-PAGE. Most proteins bind SDS in a ratio of 1.4 g SDS per gram of protein. The charges intrinsic to the protein become insignificant compared to the overall negative charge provided by the bound SDS. The charge to mass ratio is essentially the same for each protein and will migrate in the gel based only on their size.

Catalog Number: IC811030

Supplier: MP Biomedicals

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Description: Using a patent pending manufacturing process, our new inlet gold seals eliminate tiny leaks from machining that can negatively impact your GC performance.

Catalog Number: AG5190-6144

Supplier: AGILENT TECHNOLOGIES, INC (CSD)

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Description: Tris have been useful as buffers in a wide variety of biological systems. It has been used as a starting material for polymers, oxazolones (with carboxylic acids) and oxazolidines (with aldehydes). It does not precipitate calcium salts and is of value in maintaining solubility of manganese salts. It can be used for the direct standardization of a strong acid solution; the equivalence point can be determined either potentiometrically or by use of a suitable indicator such as 3-(4-Dimethylamino-1-naphthylazo)-4-methoxybenzenesulfonic acid. It is RNAse and DNAse-free. Tris is relatively non-hygroscopic; but, if needed, it can be dried at 100°C for up to 4 hours to remove any water.
Tris is used in pH control in vitro and in vivo for body fluids and in buffering systems for electrophoresis applications. Tris is used in assays used to characterize the activity and kinetics of the enzymes that catalyze SUMOylation of Small ubiquitin-like proteins (SUMO) and SUMO-dependent protein-protein interactions.

Catalog Number: IC819638

Supplier: MP Biomedicals

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Description: Thermo Scientific Pierce Premium Grade EDC is our highest quality formulation of this popular carbodiimide crosslinker, specially characterized for applications where product integrity and risk minimization are paramount.

Catalog Number: PIPG82073

Supplier: Invitrogen

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Description: Ammonium sulfide solution (aqueous ammonium sulfide) is a 20% solution in water. Ammonium sulfide is an inorganic salt with a sulfurous odor, which is commonly used in the food industry as a flavoring agent. The influence of ammonium sulfide treatment on (100)GaAs (gallium arsenide) surfaces has been studied by X-ray photoelectron spectroscopy (XPS) and reflection high-energy electron diffraction (RHEED). Its potential as an alternative to hydrogen sulfide for the transformation of activated amides to thioamides by thiolysis has been investigated.The reaction of ammonium sulfide with 3-hydroxy-2-butanone over a range of temperature has been reported to form various flavor compounds.

Catalog Number: IC0219386025

Supplier: MP Biomedicals

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Description: Urea is the principal end product of nitrogen metabolism in most mammals, formed by the enzymatic reactions of the Kreb's cycle.
Urea is a mild agent usually used in the solubilization and denaturation of proteins. It is also useful for renaturing proteins from samples already denatured with 6 M guanidine hydrochloride such as inclusion bodies; and in the extraction of the mitochondrial complex. It is commonly used to solubilize and denature proteins for denaturing isoelectric focusing and two-dimensional electrophoresis and in acetic acid-urea PAGE gels. Urea is used in cell or tissue culture media to increase the osmolality. Urea has also been used as fertilizer because of the easy availability of nitrogen; in animal feeds; it is reacted with aldehydes to make resins and plastics; condensed with malonic ester to form barbituric acid; used in the paper industry to soften cellulose; used as a diuretic; enhances the action of sulfonamides; an antiseptic.
Urea in solution is in equilibrium with ammonium cyanate. The form that reacts with protein amino groups is isocyanic acid. Urea in the presence of heat and protein leads to carbamylation of the proteins. Carbamylation by isocyanic acid interferes with protein characterization because isocyanic acid reacts with the amino terminus of proteins, preventing N-terminal sequencing. Isocyanic acid also reacts with side chains of lysine and arginine residues resulting in a protein that is unsuitable for many enzymatic digests. In addition, carbamylation often leads to confusing results from peptides having unexpected retention times and masses. When performing enzymatic protein digests it is important to remove urea first. Even though some enzymes will tolerate small amounts of urea, the elevated temperature used for most reactions will lead to carbamylation during the course of the digest. The urea can be removed prior to digestion by fast reversed phase chromatography, spin columns, or dialysis.
Dissolve urea in deionized water to the desired concentration.For every 10 ml of solution, add 1 g of Amberlite® IRA-910.Stir for one hour at room temperature

Catalog Number: IC821519

Supplier: MP Biomedicals

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