Vous avez recherché : Acide osmique

Supplier: Thermo Fisher Scientific

Acide osmique 4% (p/p) dans l'eau

Supplier: Thermo Fisher Scientific

Acide osmique 4% en solution aqueuse

Supplier: Thermo Fisher Scientific

Acide osmique 2% en solution aqueuse

Supplier: Thermo Fisher Scientific

Acide osmique 2,5% (p/p) dans le tert-butanol stabilisé, AcroSeal®

Supplier: SIGMA ALDRICH MICROSCOPY

Osmium tetroxide solution has been used as a fixative in electron microscopy.

Supplier: Thermo Fisher Scientific

Acide osmique 2,5% (p/p) dans le tert-butanol stabilisé

Supplier: Thermo Fisher Scientific

Acide osmique 99.9+% (sur base traces de métaux)

Supplier: Thermo Fisher Scientific

Acide osmique 99.8% (≥74.4% Os) (base métaux)

Supplier: SIGMA ALDRICH MICROSCOPY

Osmium tetroxide (OsO₄) is a heavy tetrahedral, symmetrical molecule composed of osmium, a third-row transition metal. Osmium tetroxide is both a dye, and a non-coagulant fixative agent in electron microscopy primarily used for the examination of biological tissue components in the histopathology laboratory. Specimens are postfixed with osmium testroxide to ensure preservation of the lipids.

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.

Supplier: Roth Carl

Acide osmique

Supplier: Roth Carl

Acide osmique 2% en solution aqueuse

Supplier: Molekula

Acide osmique

Supplier: Roth Carl

Acide osmique 4% en solution aqueuse