1070 Résultats pour : "SIGMA ALDRICH MICROSCOPY"

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Coomassie Violet R200, Dye content 50 % (Acid violet 17)

Supplier: SIGMA ALDRICH MICROSCOPY

Chief ingredient of Giemsa Stain.

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CC/mount is an aqueous based permanent mounting medium with a very high refractive index, which when applied to the stained tissue sections can store the tissue specimens permanently without the fading of the chromogens. Because of the superior refractive index of CC/mount, tissues mounted in this medium look like specimens mounted with organic based mounting media. No coverslipping is required with CC/mount. However, if coverslipping is required, dried CC/mount can be post mounted by using an organic based mounting medium. CC/mount permits the long-term storage of antigens localised using organic insoluble chromogen substrates, including AEC, DAB, Fast Red, BCIP/NBT, BCIP/INT and fluorescent dyes like FITC and phycobiliproteins. The high pH of CC/mount ensures increased stability of fluorescence intensity.

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Fast Blue BB Salt hemi (zinc chloride) salt, also known as Cl Azoic diazo 20 (Cl 37175) is a diazonium salt that possesses a lipophilic amine lipophilic with an aromatic system of moderate size. It is commercially available as the zinc chloride double salt. It has been used for alkaline phosphatase staining in cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Alcian Blue 8GX is used as a heteroglycan stain for neutral, sulfated and phosphated mucopolysaccharides and glycosaminoglycans in tissues such as cartilage and extracellular matrices.

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Naphthol AS phosphate disodium salt is intended for use as a substrate for the histochemical demonstration of acid and alkaline phosphatase activities.

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Substrate for the histochemical demonstration of acid and alkaline phosphatase. Substrate for the fluorometric assay of acid and alkaline phosphatases. Demonstration of acid phosphatase in paraffin embedded tissue. Cytofluorometric assay of acid phosphatase in single living cells.

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Dihydrogéno(éthyl)[4-[4-[éthyl(3-sulfonatobenzyl)amino](4-hydroxy-2-sulfonatobenzhydrylidène]cyclohexa-2,5-diène-1-ylidène](3-sulfonatobenzyl)ammonium, sel de disodium, Sigma-Aldrich®

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Films are stained for Gram-positive organisms with crystal violet, mordanted in iodine, decolorized and then stained for Gram-negative organisms with safranin O. For delineating Gram-positive and Gram-negative organisms in films.

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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.

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3,4,5,6-Tetrabromophenolsulfonephthalein, Dye content 95 %

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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.

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Safran, Sigma-Aldrich®

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Carbazole is an aromatic heterocyclic organic molecule.

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3,4,5-Trihydroxybenzoate de propyle ≥98% (par HPLC) pour histologie et pathologie, pour diagnostic, Sigma-Aldrich®

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Intended for use in Sigma Gram Stain Procedure, HT90.

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Acide picrique 13 g/l solution saturée dans le eau, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

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

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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.

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Kit component in the Masson Trichrome procedure, catalog number HT15

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

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

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Novec™ 7100 fluid consists of two inseparable isomers ((CF₃)₂CFCF₂OCH₃) and CF₃CF₂CF₂CF₂OCH₃) with essentially identical properties. Ideal for vapor degreasing applications as a neat (pure), azeotropic component and co-solvent parts cleaner.

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Alcian Blue solution has been used in the histological staining of acidic glycosaminoglycans (GAGs; mucopolysaccharides) that are carboxylated or sulfated. Sulfated glycosaminoglycans appear to be the preferred substrate for alcian blue at pH 2.5. Alcian blue has been used to stain hyaluronan (HA), a nonsulfated GAG, but the intensity of the staining of HA is affected by the method of tissue fixation used. Alcian blue staining of GAGs in tissue may be modified through the addition of an electrolyte such as magnesium chloride.

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PAPANICOLAOU STAIN EA 50 1 * 2,5 l

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ACID ORANGE 8 (C.I. 15575) 1 * 50 g

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4-METHYLPHTHALONITRILE 99% 1 * 10 g

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KANADABALSAM-LOESUNG, FUER DIE MIKRO 1 * 25 ml

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NEWMAN'S FAERBELOESUNG, MODIFIZIERT 1 * 100 mL

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[EN]CUSTOM PREMIX HUMAN CYTO PANEL A 12 1 * 1 Pce