Beschrijving
Eosine Y-oplossing 1% in water is een gebruiksklaar waterig kleuringsreagens voor microscopie. Het preparaat, geïdentificeerd door CAS-nummer 17372-87-1 en EG-nummer 241-409-6, heeft een dichtheid van 1 g/cm³ en een kookpunt van 100 °C, wat consistent is met een kleuroplossing op waterbasis. Laboratoria gebruiken deze concentratie voor routinematige helderveldmicroscopie en aanverwante kleuringsprotocollen die een gedefinieerd waterig Eosine Y-bad vereisen. De oplossing is afkomstig van fabrikant Carl ROTH en ondersteunt reproduceerbare monstervoorbereiding in pathologie-, histologie- en onderwijslaboratoria. Duidelijke etikettering van concentratie en oplosmiddel helpt bij het standaardiseren van kleuringsstappen en vermindert de noodzaak voor het zelf verdunnen van de vaste kleurstof.
Dit artikel hoort thuis in Microscopiekleuringen & kleuringsoplossingen, in Kleurstoffen, kleuringen & indicatoren.
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Eosine Y-oplossing 1 % in water, voor microscopie, 500 ml, glas is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Microscopy stains & staining solutions, inside Dyes, stains & indicators, in Chemicaliën.
A microscopy stain binds a structure so it can be seen: haematoxylin on nuclei, eosin on cytoplasm, Gram reagents on a bacterial wall. A ready solution and a dry dye to be dissolved are different articles. The method names the stain. A substitute dye is a different method.
A dye or a stain binds, or changes colour, so that something invisible becomes visible. An indicator changes at a pH or a redox point. A fluorescent dye absorbs one wavelength and emits another, which is how a microscope or a plate reader picks it out. The excitation and emission, or the transition interval, are the specification. The colour name on the label is not. Structures are on PubChem under IUPAC names. Methods are in the PubMed literature.
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