2295 Results for: "Kyselina+kaprylov\\\\\\\\\\\\\\\\u00E1"

Supplier: MP Biomedicals

Chloroplatinic acid is used in potassium determination, purification of platinum and in catalysis.

Supplier: Cayman Chemical

Saturated fatty acids are synthesised by both plants and animals from acetyl coenzyme A as a form of long-term energy storage. Palmitic acid is a common 16-carbon saturated fat that represents 10-20% of the normal human dietary fat intake, and approximately 25% of the total plasma fatty acids in plasma lipoproteins. Saturated free fatty acids induce the expression of cyclooxygenase-2. Palmitic acid methyl ester (MP) is a fatty acid ester whose concentration in cells is modulated by methanol. In studies with isolated Kupffer cells, MP inhibits phagocytosis and decreases cell viability. In cells treated with lipopolysaccharide, it also decreases secretion of interleukin-10, TNF-α, nitric oxide, and prostaglandin E2. This effect is thought to occur by the inhibition of NF-κB.

Supplier: HELLMA

The Hellma® calibration standards comply with all necessary standards and regulations and thus offer the highest quality for recalibrating your spectrometer.

Supplier: VWR Chemicals

, HiPerSolv CHROMANORM® for LC-MS

Supplier: Merck

Titriplex® IV (trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate) analytical reagent, Supelco®

Supplier: Merck

Accurate analytic results in UV/Vis and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol® solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol® solvents offer best UV transmittance. In all specifications the minimum transmittance for five typical wavelengths are identified. Furthermore the transmittance is specified in accordance with Reag. Ph. Eur. and ACS.

Supplier: Merck

Acid Fuchsin is mainly used as a diachrome and is part of the connective tissue stains. It also works as a pH indicator.

Supplier: Thermo Fisher Scientific

trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate 98%

Supplier: G-Biosciences

Ellman's reagent is a versatile, water-soluble compound for quantifying free sulfhydryl groups in solution. It reacts with a free sulfhydryl group to yield a mixed disulfide and 2-nitro-5-thiobenzoic acid (NTB), a measurable yellow colored product at 412nm.
Ellman's reagent is very useful as a free sulfhydryl assay reagent due to its high specificity for -SH groups at neutral pH, high molar extinction coefficient and short reaction time.

Supplier: Avantor

The J.T.Baker® BAKERBOND® PolyABx multimode ion exchange (IEX) chromatography resin functions as a weak cation exchange resin with improved selectivity for superior separation in process chromatography applications.

Supplier: Merck

, LiChrosolv® for liquid chromatography, Supelco®

Supplier: MP Biomedicals

Citric acid acts as an iron chelator. It can support cholesterol/sterol, ubiquinone and isoprenoid biosynthesis in cell culture applications. In animals, citric acid improves the utilization of nutritional calcium. It is a useful buffer component.

Supplier: Merck

Methanolic HCl (hydrogen chloride in methanol) is particularly useful for preparing methyl esters of volatile (short chain) fatty acids. Fatty acids are esterified by heating them with an anhydrous alcohol in the presence of an acidic catalyst in a sealed vessel at a high temperature for a short time. In the reaction, a fatty acid molecule and an alcohol molecule are joined, with the release of a water molecule. The derivatives can be quickly and easily recovered, quantitatively, from the reaction medium.

Supplier: Thermo Fisher Scientific

Hafnium Standard, 1000 mg/L, Hafnium, Matrix: 5% HF, Application: AAS standards

Supplier: Merck

trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid monohydrate, Sigma-Aldrich®

Supplier: MP Biomedicals

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%

Supplier: MP Biomedicals

Acid fuchsin is one of the dyes used in Masson′s trichome stain where it is used to distinguish muscle from collagen.

Supplier: Thermo Fisher Scientific

Chromotropic acid disodium salt dihydrate 98%

Supplier: VWR Chemicals

Trichloroacetic acid glacial Ph. Eur.

Supplier: Honeywell Chemicals

Acetonitrile with 0,1% (v/v) formic acid, CHROMASOLV™ LC-MS Ultra LabReady™, Solvent Blend tested for UHPLC-MS, Riedel-de Haën™

Supplier: Thermo Fisher Scientific

Dihydrogen hexachloroplatinate(IV) hexahydrate is used for the determination of potassium. It is also used for the purification of platinum by treating it with ammonium chloride flowed by heating of ammonium hexachloroplatinate with hydrogen yields elemental platinum. It also finds application in catalysis, electroplating, photography, platinum mirrors, printing for etching of zinc, producing fine color in glass and porcelain, indelible ink and microscopy. It is a precursor for the preparation of other platinum catalysts.

Supplier: MP Biomedicals

Sodium hexanesulfonate is a low molecular weight alkylsulfonate that is used as an ion pairing reagent for HPLC and as an anionic surfactant. The anionic sulfonate counterion permits the separation and resolution of positively charged analytes. Because of its low molecular weight, it will not form micelles in solution and therefore has no CMC value.
For ion-pair chromatography. Sodium hexanesulfonate is utilized in the analysis of small organic compounds, and pharmaceutical products and metabolites by such techniques as HPLC.

Supplier: Spectrum Chemical

Succinic acid ≥99% FCC

Supplier: Thermo Fisher Scientific

Zirconium Standard, 1000 mg/L, Zirconium, Matrix: 5% HF, Application: AAS standards

Supplier: Avantor

BAKERBOND spe™ columns are disposable PP columns pre-packed with high capacity sorbents contained between two 20 µm PE frits.

Supplier: Spectrum Chemical

Sodium Ascorbate, Powder, USP is used to prevent or treat low levels of vitamin C in people who do not get enough of the vitamin from their diets. All Spectrum Chemical USP products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities

Supplier: MP Biomedicals

Sorbic acid (2,4-hexadienoic acid) is a straight chain unsaturated fatty acid. It is an antimicrobial agent. The antimicrobial action of sorbic acid is due to its inhibitory influence on various enzymes in the microbial cell such as enzymes involved in carbohydrate metabolism such as enolase and lactate dehydrogenase, enzymes of citric acid cycles.

Supplier: Merck

Soluble in water and mineral acids; insoluble in organic solvents. In aqueous solutions forms pyrrolidonecarboxylic acid slowly at room temperature, more rapidly at 100 °C.

Supplier: MP Biomedicals

p-Toluenesulfonic acid monohydrate is an organic-soluble acid catalyst in organic synthesis. The catalyst has been incorporated in the esterification of carboxylic acids or transesterification of esters.

Supplier: Avantor

BAKERBOND spe™ columns are disposable PP columns pre-packed with high capacity sorbents contained between two 20 µm PE frits.