A3429 and A3179 are the same solution but in different package sizes. No dilution is required for these products, but some customers may prefer a slightly weaker acid differentiation solution. The differentiation time may vary due to staining time and the thickness of the tissue sections being stained.
A3429
Differentiation Solution
for the differentiation of regressive hematoxylin stains
Sinônimo(s):
Acid Alcohol
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4 L
R$ 1.415,00
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4 L
R$ 1.415,00
About This Item
Produtos recomendados
Formulário
solution
prazo de validade
40 mo.
cor
colorless
aplicação(ões)
hematology
histology
temperatura de armazenamento
room temp
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Descrição geral
Differentiation solution comprises acidified ethanol or isopropanol that is used to decolorize hematoxylin stain. The duration of exposure to the solution determines the degree of decolorization. Differentiation is a crucial step in hematoxylin-eosin staining to achieve the proper color contrast necessary for visualization, by selectively removing excess hematoxylin from the tissue section and leaving behind the desired staining intensity.[1]
Aplicação
Acidified alcohol solution for the differentiation of regressive hematoxylin stains.
Características e benefícios
- Desired staining patterns can be obtained by varying the degree of exposure to the differentiation solution.
- Results are sharper and more rapid compared to other differentiation methods.[4]
- Crisp and clear differentiation between cellular structures is obtainable when performed according to Sigma-Aldrich Procedure No. GHS.
Princípio
In regressive hematoxylin staining, a highly concentrated hematoxylin solution is used to rapidly overstain both nuclei and cytoplasm, and the cytoplasm is subsequently decolorized and excess hematoxylin is removed from the nucleus with dilute acid. Improper differentiation leaves excess residual hematoxylin that obscures the fine details of nuclear structures and chromatin and prevents eosin uptake.[1]
Palavra indicadora
Danger
Frases de perigo
Declarações de precaução
Classificações de perigo
Eye Irrit. 2 - Flam. Liq. 2 - Met. Corr. 1 - STOT SE 2
Órgãos-alvo
Eyes,Central nervous system
Código de classe de armazenamento
3 - Flammable liquids
Classe de risco de água (WGK)
WGK 1
Ponto de fulgor (°F)
71.6 °F
Ponto de fulgor (°C)
22 °C
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Do Differentiation Solutions A3179 and A3429 need to be diluted before use?
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