1057 Ergebnisse für: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

Yellow counterstain suitable for a wide range of histological staining procedures.

Supplier: SIGMA ALDRICH MICROSCOPY

When blood films are stained using Wright-Giemsa Stain, the white blood cell nucleus and cytoplasm take on the characteristic blue or pink coloration. The combination of purified eosin and thiazine dyes in the product eliminates inconsistent staining and yields reproducible chromogenic responses.

Supplier: SIGMA ALDRICH MICROSCOPY

1-Heptyl-4-(4-pyridyl)pyridinium bromide,95%

Supplier: SIGMA ALDRICH MICROSCOPY

SynaptoRed™ C2 has been used for propidium iodide (PI) blockage.

Supplier: SIGMA ALDRICH MICROSCOPY

Khellin, for microscopy (4,9-Dimethoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one)

Supplier: SIGMA ALDRICH MICROSCOPY

Density gradient medium is suitable for cell and subcellular organelle isolation, virus purification, and isolation of lipoproteins and macromolecules.

Supplier: SIGMA ALDRICH MICROSCOPY

Building block for 'Anti-Bredt' strained molecules.

Supplier: SIGMA ALDRICH MICROSCOPY

It is used for the preparation of electrically conducting glasses. Used to make solutions for the separation of RNA from DNA by density gradient centrifugation.

Supplier: SIGMA ALDRICH MICROSCOPY

General purpose nuclear stain, progressive type. Used with hematoxylin and eosin staining.

Supplier: SIGMA ALDRICH MICROSCOPY

Trypan Blue (C.l. 23850) is a large, tetrasulfonated anionic, hydrophilic dye. It is also known as diamine blue 3B. Trypan blue has been used as a dye in trypan blue exclusion assay/cell viability assay to detect dead cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Propyl-3,4,5-trihydroxybenzoat ≥98% (durch HPLC) für Histologie und Pathologie, für Diagnostik, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

4-(4-Isothiocyanatophenylazo)-N,N-dimethylaniline,97% (4-(Dimethylamino)azobenzene-4'-isothiocyanate; DABITC)

Supplier: SIGMA ALDRICH MICROSCOPY

Metachromatic dye

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Toluidine blue (C.l. 52040) is a diaminothiazine dye. It is also known as TBO, tolonium chloride, and toluidine blue O.

Supplier: SIGMA ALDRICH MICROSCOPY

Brillantgrün (Malachitgrün G) ≥90% (Farbstoffgehalt), zertifiziert durch die Biological Stain Commission, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Intended for use in the Leukocyte Acid Phosphatase procedure, procedure No. 386 or 387

Supplier: SIGMA ALDRICH MICROSCOPY

Suitable for titration of morpholine

Supplier: SIGMA ALDRICH MICROSCOPY

Violamine R 60% (Farbstoffgehalt), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

10-(2',4'-Dinitrophenylazo)-9-phenanthrol, (DNAF)

Supplier: SIGMA ALDRICH MICROSCOPY

Citrate Solution for the preparation of a 60% citrate buffered acetone solution used as a fixative for blood smears. No dilution required. Add 30 ml citrate solution to 20 ml absolute acetone for preparation of fixative.

Supplier: SIGMA ALDRICH MICROSCOPY

Brilliant cresyl blue is a phenoxazine dye.

Supplier: SIGMA ALDRICH MICROSCOPY

Silver stain is an aid in distinguishing fungi, basement membrane and opportunistic organisms such as Pneumocystis carinii in tissue sections or smears.

Supplier: SIGMA ALDRICH MICROSCOPY

1,9-Dimethyl-Methylene Blue zinc chloride double salt has been used for the quantification of sulfated glycosaminoglycans.

Supplier: SIGMA ALDRICH MICROSCOPY

3,3′-Diaminobenzidine tetrahydrochloride hydrate has been used in immunohistological staining procedure and in situ hybridisation. DAB (3,3′-Diaminobenzidine) is utilised in many applications for the visualisation of peroxidase activity. In the peroxidase reaction, DAB serves as a hydrogen donor in the presence of peroxide. The oxidised DAB forms an insoluble brown end-product for use in immunohistological and immunoblotting staining procedures.

Supplier: SIGMA ALDRICH MICROSCOPY

For use in the Acid Phosphatase (Leukocyte) Kit No. 387A

Supplier: SIGMA ALDRICH MICROSCOPY

Formaldehyde is both a non-coagulant and an additive fixative. Formaldehyde is known to penetrate tissue quickly, but the fixation process may take a long time to form the various cross links with tissue proteins. Formalin fixation is thought to form cross links between the aldehydes and the proteins, creating a gel, thus retaining cellular constituents in their in vivo relationship. Once properly fixed, the tissue should be able to withstand the subsequent stages of tissue processing or staining. Although there is no true universal fixative, 10% neutral buffered formalin (NBF) is perhaps the most commonly used fixative throughout the world for light microscopy and is a somewhat forgiving fixative. Of the dozens and dozens of available fixatives, it is hard to imagine a fixative more commonly used than 10% NBF. 10% neutral buffered formalin is well suited for large throughput laboratories, and requires a relatively short period of fixation, but can also be used for the long-term storage of tissue.

Supplier: SIGMA ALDRICH MICROSCOPY

Esterasen sind in der Natur ubiquitär verbreitet und umfassen eine Reihe unterschiedlicher Enzyme, die auf bestimmte Substrate einwirken.

Supplier: SIGMA ALDRICH MICROSCOPY

4-Phenylazophenol is a polymethacrylates containing polar azo dye. 4-Phenylazophenol (4PP) has been used to study mineralisation by P. chrysosporium under nitrogen-sufficient and nitrogen-limiting culture conditions.

Supplier: SIGMA ALDRICH MICROSCOPY

Alginic acid is a high molecular weight linear polymer isolated from seaweed. It is a linear β-1→4-linked polymer of n-mannuronic and L-guluronic acid. It is an acid polysaccharide present in the extracellular matrix of brown algae.

Supplier: SIGMA ALDRICH MICROSCOPY

Mordant orange 1 is also known as Alizarin Yellow R, C.I. 14030. Mordant orange 1 is an azo dye. Azo dyes used as biological stains contain an azo group (−N=N−). It is used for colouring many different materials such as textile, leather, and plastics and for manufacturing paints and lacquers and for printings purposes as well.