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1071 results for "SIGMA ALDRICH MICROSCOPY"

1071 Results for: "SIGMA ALDRICH MICROSCOPY"

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Cresyl violet perchlorate, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Cresyl Violet perchlorate is suitable as a laser dye.

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Nile blue A, certified by the Biological Stain Commission, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Nile Blue A has been used for the staining of eggs before transferring them to the hosts. It has been used for the staining of cells.

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Formalin 10% histological fixative, neutral buffered, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Formalin solution (10%, neutral buffered) is a widely used fixative for samples processed for light microscopy. It requires a relatively short period of fixation. It is suitable for the long-term storage of tissue. Once properly fixed, the tissue should be able to withstand the subsequent stages of tissue processing or staining.

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Sudan II 90% (dye content), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan II has been used to determine its presence in commercial spices such as hot chilli food samples (LC–ESI–MS/MS).

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Hematoksylin løsning (Mayer), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

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

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Hematoksylin modified solution (Harris), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

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

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Di-8-ANEPPS ≥95% (by HPLC), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

4-(2-[6-(Dioctylamino)-2-naphthalenyl]ethenyl)-1-(3-sulfopropyl)pyridinium inner salt. ≥95% (HPLC), solid (Di-8-ANEPPS)

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Control slide, Melanin TISSUE-TROL™, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Histology slides with paraffin embedded section of human skin containing melanin.

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Bromfenolblått natriumsalt in ACS Reagent grade water 90% (dye content), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Bromophenol blue has been used in the sample buffer prepared for western blotting. A tracking dye for nucleic acid or protein electrophoresis in agarose or polyacrylamide gels.

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Amyloid Stain, Congo Red Kit, Sigma-Aldrich®

Amyloid Stain, Congo Red Kit, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Amyloid protein is detected in tissue with Congo red, a metachromatic stain. Staining is intensified by pretreatment of tissue with alkaline sodium chloride.

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3,3'-Diaminobenzidin 97% (by HPLC), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

3,3′-Diaminobenzidine has been used as a chromogen for the visualisation in immunohistochemistry of chondrosarcoma sections, mammary carcinomas and brain tissue sections. Peroxidase substrate; reagent for spectrophotometric determination of selenium. DAB (3,3′-Diaminobenzidine) is utilized 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 the immunohistological and immunoblotting staining procedures.

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Methylene violet ≥65% (dye content), certified by the Biological Stain Commission, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Certified for use as a constituent of MacNeal′s tetrachrome stain for blood.

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Acetone 2,4-Dinitrophenylhydrazone 99% analytical standard, for environmental analysis, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Acetone 2,4-Dinitrophenylhydrazone 99% analytical standard, for environmental analysis, Sigma-Aldrich®

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1,3-Diphenylacetone-p-toluenesulphonylhydrazone ≥98%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

1,3-Diphenylacetone-p-toluenesulphonylhydrazone ≥98%, Sigma-Aldrich®

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Hematoksylin løsning Gill III, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Gill formulation No. 3 may be used for cytology and/or histology as a progressive or regressive stain depending on length of staining time. Used with hematoxylin and eosin staining.

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Naphthol AS-BI phosphate løsning 12,5 mg/mL, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Naphthol AS-BI Phosphoric acid solution for use in the Sigma Acid Phosphatase (TRAP) Procedure, Kit 387A.

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Leuco malachite green, pulver, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Leucomalachite green has been used as a reagent in presumptive tests which are used to detect invisible blood stains.

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Giemsa's stain modified, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

When blood films are stained using Giemsa Stain, the nucleus and cytoplasm of white blood cells take on characteristic blue or pink coloration. The use of purified eosin and thiazine dyes minimizes lot-to-lot variation.

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7-Diethylamino-3-(4-maleimidophenyl)-4-methylcoumarin (CPM), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

7-Diethylamino-3-(4-maleimidophenyl)-4-methylcoumarin has been used: as a nontoxic substitute for conjugation with antibody(93) to aid fluorescent detection of Coenzyme A (CoA-SH) in human N-myristoyltransferases assay (94)

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EDTA buffer, pH 8.5, 10×, antigen retriever, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Intended for heat-induced antigen retrieval on formalin-fixed paraffin-embedded (FFPE) tissue sections prior to application of antibodies in immunohistochemistry (IHC). Improves accessibility of antibodies to tissue antigens.

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2,4,6-Tri(dimetylaminometyl)fenol, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

2,4,6-Tri(dimetylaminometyl)fenol, Sigma-Aldrich®

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Crystal ponceau 6R, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Crystal Ponceau 6R has been used in the MSB (martius yellow–crystal scarlet–methyl blue) staining procedure for the staining of collagen fibers and erythrocytes.

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1,1′-Dioctadecyl-4,4′-bipyridinium dibromide ≥97%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

1,1'-Dioctadecyl-4,4'-bipyridinium dibromide,97% (Octadecyl viologen dibromide)

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Osmiumsyre 4% vandig løsning, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Osmium tetroxide is also referred to as osmium and is mainly used as a secondary fixative of tissues. The molecule reacts with lipid moieties and is responsible for the oxidation of unsaturated bonds of fatty acids. This reaction adds density and contrast to biological samples. In normal tissues, presence of osmium results in intense black staining which can be viewed by normal eye. In addition, it can be used as a mordant (a molecule which combines with stain or dye at later stages) in electron microscopy, thereby enhancing lead staining.

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2,4-Dimethoxytoluene, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

2,4-Dimethoxytoluene, Sigma-Aldrich®

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Dihydrorhodamine 123 ≥95% (by HPLC), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Dihydrorhodamine 123 has been used for the detection of free intracellular radicals or ROS (reactive oxygen species).

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3-Ethyl-2-methylbenzothiazolium iodide, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

3-Ethyl-2-methylbenzothiazolium iodide, Sigma-Aldrich®

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Azure A 70% (dye content) certified by the Biological Stain Commission, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

The combination of azure A and silver staining is used for the quantification of glycosaminoglycans in agarose gels. It is also used for the staining of chromosomes in the nucleus. Azure A is a main component of the azure B/polychromed methylene blue-eosin stains family, also referred to as the Romanowsky stain. Azure A is a basic cationic dye.

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Aqueous mounting medium, Fluoroshield™, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Fluoroshield™ is an aqueous mounting medium for preserving fluorescence of tissue and cell smears.

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Direct red 80 25% (dye content), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Direct Red 80 (C.I. 35780) is an extremely hydrophilic, very large tetrakisazo hexasulfonated anionic dye that has a large, planar aromatic system.It is also known as Sirius red F3B, chlorantine fast red 7BLN or 5BRL, durazol brilliant red B, pontamine fast red 7BNL, and sirius fast red.

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