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175 results for Farger

 

Farger

VWR har reagenser og fargestoffer brukt innen mikroskopi for å fremheve og analysere spesifikke strukturer i celler eller vevsprøver.

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Sigma-Aldrich® Bouin's solution

Supplier: SIGMA ALDRICH MICROSCOPY

Bouin's solution is an excellent fixative for preserving soft and delicate structures. It is prepared with saturated picric acid, formaldehyde and acetic acid.

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Differentiation Solution

Supplier: SIGMA ALDRICH MICROSCOPY

Differentiation solution comprises acidified ethanol or isopropanol that is used to decolourise hematoxylin stain. The duration of exposure to the solution determines the degree of decolourisation. Differentiation is a crucial step in hematoxylin-eosin staining to achieve the proper colour contrast necessary for visualisation, by selectively removing excess hematoxylin from the tissue section and leaving behind the desired staining intensity.

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Mountant for histology, DPX, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

DPX Mountant for histology has been used as a slide mountant to fix sections.

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Xylene substitute, Neo-Clear®, Sigma-Aldrich®

Xylene substitute, Neo-Clear®, Sigma-Aldrich®

Supplier: Merck

Neo-Clear® is a non hazardous alternative to xylene. It is virtually odourless, compatible with most high purity solvents and is characterised by lower evaporation rates than xylene, making it a lower health risk.

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Spurr low viscosity embedding kit, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Spurr resin is a hydrophobic resin. It is less viscous than epon mixtures and is easier to dispense. The low viscosity of the resin contributes to its penetration in tissue, mineral and dense structures. A low viscosity of 60 cps also allows easy penetration into a variety of difficult materials.

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Immersion oil viscosity 1,250 cSt (lit.), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Immersion oil has been used in epifluorescent microscopy and cell identification.

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HistoChoice® Clearing agent, Sigma-Aldrich®

HistoChoice® Clearing agent, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

HistoChoice® is a patented, complex mixture of agents that allow tissues to retain their structure, antigenic sites and nucleic acid sites. This formulation in non-citrus, contains no mercury, formaldehyde or glutaraldehyde.

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Innstøpings- og monteringsmedier

Innstøpings- og monteringsmedier

Supplier: Merck

Den definerte hardheten og ensartetheten av materialet som skal kuttes, er svært viktige krav for å få en kutting av jevn kvalitet. Disse kravene kan oppfylles ved hjelp av en rekke egnede stoffer, for eksempel parafiner, plast, gelatin og celloidin.

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Immersion oil for microscopy, Sigma-Aldrich®

Supplier: Merck

Used to increase lens effectiveness

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Immersion oil for microscopy, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Immersion oil is used for high resolution (1000X) light microscopy work under oil immersion objective lens.

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Aqueous mounting medium, Fluoroshield™ with 1,4-Diazabicyclo[2.2.2]octane, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Fluoroshield™ with 1,4-Diazabicyclo[2.2.2]octane is an aqueous mounting medium for preserving fluorescence of tissue and cell smears.

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VWR®, OCT Embedding matrix for frozen sections

VWR®, OCT Embedding matrix for frozen sections

Supplier: VWR Chemicals

When sectioning frozen tissue for rapid surgical biopsy diagnosis or for research (typically in Histochemistry), the tissue sample must be firmly attached to the microtome stage or chuck. Embedding material such as OCT are preferred as these also provide a supportive and protective aid to sectioning.

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Monteringsmedium, høyt, histokvalitet, J.T.Baker®

Supplier: Avantor

Monteringsmedium for dekkglass for slides.

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VWR® Q Path® O.C.T. Compound Mounting Medium for Cryotomy

VWR® Q Path® O.C.T. Compound Mounting Medium for Cryotomy

Supplier: VWR Chemicals

High viscosity mounting medium for cryotomy.

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Embedding medium, PolyFreeze, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

PolyFreeze is a water-soluble support matrix and a form of embedding medium for frozen sectioning. PolyFreeze sections flawlessly at routine frozen specimen thickness of 5-6 μ and leaves no slide residue. It provides for -20 ºC cryostat sectioning in rapid set embedment. This medium freezes quickly supporting the tissue for sectioning at 3 mm and up with no cracking of the matrix at temperatures from -8 °C to -25 °C.

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ImmunoHistoMount™ Mounting Medium

Supplier: SIGMA ALDRICH MICROSCOPY

ImmunoHistoMount™ is a permanent aqueous mounting medium designed for tissue sections and cell smears with peroxidase and alkaline phosphatase chromogens that cannot be dehydrated with organic solvents.

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Mounting medium, Entellan® new

Mounting medium, Entellan® new

Supplier: Merck

Entellan® new is a new mounting medium for cover slippers and is specially suited for commercial automated mounting instruments that operate with cover slippers. Its viscosity ranges between 250 and 600 mPas, 1,00869 has a small viscosity range. This narrow viscosity range improves and accelerates the application, as neither the dropping rate nor the volume need to be reset after the first run with a new bottle of Entellan® new.

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Water-free mounting medium, Neo-Mount®

Water-free mounting medium, Neo-Mount®

Supplier: Merck

Water-free mounting media, such as Neo-Mount®, should be used for permanent mounting and long-term storage of samples. Slides processed in pathologyl laboratories need to be stored up to 10 years, whereby the staining results need to be stable and fading-out is not acceptable. Neo-Mount®, anhydrous mounting medium for microscopy is an extremely colour-stable mounting medium for microscopy, which is produced with solvents based on mixtures of aliphatic hydrocarbons. It contains an aromatic-free substitute for xylene, thus, Neo-Mount® needs to be combined with Neo-Clear® exclusively. Xylene must be avoided in the mounting step, as it will cause the slides to become cloudy and streaked. In addition, by placing the dehydrated slides on filter paper for approx. 1 minute prior to mounting, any excess Neo-Clear® should be circumvented, as air bubbles might arise under the cover slip. The same pre-condition should also be met when mounting specimens using cover slip machines; in this area, Neo-Clear® can be most efficiently eliminated by incubating the slides for 1 minute in an empty slide rack.

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Aqueous mounting medium Aquatex®, Sigma-Aldrich®

Supplier: Merck

Aquatex is used for e.g. LEUCOGNOST stained specimens. For preservation purposes and subsequent optimal microscopy, the stained sections are normally mounted using a suitable mounting agent and covered with a cover glass.

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Osteo-Bed Bone Embedding Solvent

Supplier: SIGMA ALDRICH MICROSCOPY

For use with Osteo-bed bone embedding kit. Solvent for removal of plastic from sections prior to rehydration and staining. Most histochemical and immunohistochemistry staining protocols require the removal of methyl methacrylate (MMA) and rehydration of mounted sections for improved stain penetration and greater contrast.

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Mounting Medium, CC/Mount™

Supplier: SIGMA ALDRICH MICROSCOPY

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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Epoxy Embedding Medium Kit

Supplier: SIGMA ALDRICH MICROSCOPY

The Epoxy Embedding Medium Kit is a very widely used embedding medium for electron microscopy. The embedding formulation originally published by Luft (1961) is excellent for both plant and animal tissues. Due to the low viscosity of the resin, it penetrates the tissue specimen faster than Araldite and other polymers. It hardens easily and uniformly at low temperatures with the addition of dodecenylsuccinic anhydride (DDSA), methyl nadic anhydride (MNA), and the accelerator 2,4,6-tris(dimethylaminomethyl)phenol (DMP-30). Slight shrinkage may occur during curing. This kit is useful for embedding a variety of tissues as a wide range of hardness can be obtained with this resin to suit a specific tissue type by using two different anhydride curing agents (DDSA and MNA).

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Avkalkningsløsninger, OSTEOMOLL® og OSTEOSOFT®

Avkalkningsløsninger, OSTEOMOLL® og OSTEOSOFT®

Supplier: Merck

Hardt vev, som ben eller tenner, og alle prøver av kalkvev, som benmargsbiopsier, krever spesiell forbehandling før de rutinemessig behandes på et histologisk laboratorium.

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Mounting medium, kaiser's glycerol gelatine, phenol-free

Mounting medium, kaiser's glycerol gelatine, phenol-free

Supplier: Merck

Kaiser's glycerol gelatin is an aqueous mounting medium for microscopy and works well with specimens prepared for enzyme, lipid, and immunohistochemistry determinations.

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Aqueous mounting medium, glycerol gelatin, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Glycerol alters the hygroscopic property of gelatin and its permeability to water vapour. Glycerol gelatin or glycerine jelly medium is an aqueous slide mounting media, used for mounting samples in microscopy and histology.

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Immersion oil viscosity 150 cSt (lit.), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Immersion Oil has a defined refractive index of about 1,516. It is important that the refractive index (nD) is about 1,5, similar to that of glass. This enables a homogeneous oil immersion to be achieved.

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Osteo-Bed Bone embedding kit, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Suitable for use with large and small mineralized (undecalcified) bone sections. Yields clear, hard blocks for cutting sections. Not water-soluble.

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Zinc Formalin Fixative

Supplier: SIGMA ALDRICH MICROSCOPY

Zinc formalin fixative is a non-precipitating fixative. This fixative is compatible with histochemical, immunochemical and special stains. It may be used with automated tissue processors and also in manual methods. The zinc chloride component of the formulation increases the rigidity of cellular components to withstand subsequent processing, sectioning and staining procedures. Tissue specimens initially fixed using 10% neutral buffered formalin solution may be post-fixed using the zinc formalin fixative.

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Ren™ HY 956 epoxy embedding medium, hardener, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

to be used with SIAL 78711 RenLam M-1 (Epoxy Embedding Medium)

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RenLam® M-1 for microscopy, suitable as a embedding medium, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

To be used with SIAL 69571 Ren HY 956 (Hardener for Epoxy Embedding Medium)

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