74476 Resultat för: "MP Biomedicals"

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α,α'-Dipyridyl is a bidentate ligand employed in transition metal catalysis and aluminum initiated polymerisation (inorganic syntheses).

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Dioctyl sulphosuccinate sodium salt is used to make a microemulsion with CAPSO for the electrophoresis detection of natural and synthetic estrogens. Used to prepare reverse micelles.

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Tween 80 is a polyethylene sorbitol ester, non ionic surfactant and an emulsifier derived from polyethoxylated sorbitan and oleic acid.

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Polysorbate 20 is nonionic surfactant derived from sorbitan ester.

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Ceramic sphere is a Zirconium oxide coated grinding matrix which is chemically inert and will not bind nucleic acids. These are components of lysing matrices.

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Double antibiotic solution containing 10, 000 units/ml of penicillin and 10, 000 µg/ml of streptomycin.

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Ferulic acid is a chemopreventive caffeic acid analogue. Ferulic acid is an inhibitor of 5-LO (5-lipoxygenase) and 12-LO (12-lipoxygenase).

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DL-Ethionine is a racemic mixture of the anti-methylation agent L-ethionine and its enantiomer D-ethionine. DL-Ethionine is used as a dietary supplement to accelerate cholangiocarcinogenesis in vivo. DL-Ethionine is used to induce oxidative stress in liver to study the levels and activities of anti-oxidative enzymes and compounds such as glutathione.

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Activators: Papain is activated by cysteine, sulphide, sulphite and more. It is enhanced when heavy metal binding agents such as EDTA are also present. N-bromosuccinimide enhances the activity. Inhibitors: Substances which react with sulphydryl groups including heavy metals, carbonyl reagents. Aldehydes are papain inhibitors. Benzoylamidoacetonitrile is an inhibitor. See Shapira and Arnon (1967a and b) on antibody inhibitors. Papain may be inactivated by H₂O₂ generated by γ-irradiation of H₂O⁻ the active SH group being oxidised to sulphenic acid. Specific inhibitors are AEBSF, antipain, cystatin, E-64, leupeptin, PMSF, TLCK and TPCK.

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Lysing Matrix Z is used primarily for lysis of animal and plant tissue, tougher stems, roots and seeds, and whole insects. Each impact-resistant tube contains yttria-stabilised zirconium oxide beads.

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Used primarily for lysis of gram positive and gram negative bacteria, fungal tissue and spores, yeasts, moulds, filamentous algaes and biofilms.

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Premium 8-well multitest slide

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The MagBeads FastDNA Kit for Feces allows thorough sample lysis and quick isolation of DNA from fecal samples. It is using magnetic beads with high DNA binding capacity for extraction of high yields of pure DNA. This is done manually using a magnetic rack or adapted to automated instruments for high throughput processing.

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MagBeads Fast Circulating DNA Kit is intended for purification of high-quality circulating DNA (cfDNA) from cell-free body fluids (such as plasma, serum). The purified DNA is suitable for direct use in downstream applications such as PCR, real-time PCR, Biochip analysis and NGS.

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A straight-chain, hydrophilic, colloidal, polyuronic acid composed primarily of anhydro-β-D-mannuronic acid residues with 1→4 linkage.

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1,3-Propane Sultone was used as quaternisation agent to transit the PDMAEMA into poly(zwitterions) through surface reaction by treating membranes under a mild condition.

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Soluble in water (100 mg/ml), yielding a clear, colorless solution.

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Ponceau S is used as protein stain for electrophoresis.

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Chloramphenicol is a synthetic antibiotic, which was first isolated from strains of Streptomyces venezuelae

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Indigo Carmine is a blue, anionic indigoid dye.
Indigo Carmine is useful in the staining of Negri bodies. It can be used as a contrast stain for plasma when red nuclear stains are used.

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D-Gulonic acid-γ-lactone, pulver

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PIPES is a zwitterionic N-substituted aminosulfonic acid "Good" buffer. Buffers can be made by adding a solution of base to PIPES free acid, titrating to the appropriate pH, or by mixing equimolar solutions of the sesquisodium salt and the disodium salt or dipotassium salt, titrating to the appropriate pH.

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2,4-Dichlorophenoxyacetic acid is a herbicide.

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Soluble in water (100 mg/ml); practically insoluble in benzene, chloroform or ether.

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Ammonium acetate is a chemical compound which is derived from the reaction of ammonia and acetic acid. Ammonium acetate is volatile at low pressures. Because of which it has been used to replace cell buffers with non-volatile salts, in preparing samples for mass spectrometry. It is used as a buffer for mobile phases for HPLC with ELSD detection.

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Soluble in water (50% w/v).

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Nitrilotriacetic acid is an excellent chelating agent which sequester metal ions to form water-soluble complexes; It has many industrial applications. Because of its ability to chelate calcium and magnesium ions.

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Trichloroacetic acid is used in protein precipitation; has been used to determine protein concentration by quantitative precipitation. Used as a decalcifier and fixative in microscopy. A protocol for the precipitation of nucleic acids can be found in Molecular Cloning.
Stability: Long term storage of aqueous solutions of less than 30% strength is not recommended. Decomposition products are chloroform, hydrochloric acid, carbon dioxide and carbon monoxide. Chloride ≤0.001% ; Nitrate ≤0.002%; Phosphate ≤5 ppm; Sulfate ≤0.02%

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Soluble in water.

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Acetoacetyl-CoA is a precursor of poly-beta-hydroxybutyrate polymers in microorganisms. It plays an important role in the biosynthesis of nonactin.