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Merck
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Key Documents

A3429

Sigma-Aldrich

分化液

for the differentiation of regressive hematoxylin stains

同義詞:

酸性酒精

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About This Item

MDL號碼:
分類程式碼代碼:
12171500
NACRES:
NA.47

形狀

solution

儲存期限

40 mo.

顏色

colorless

應用

hematology
histology

儲存溫度

room temp

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一般說明

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.

應用

Differentiation solution is employed mainly for the differentiation of regressive hematoxylin stains. It has been used in the following studies:

  • the prediction of pulmonary metastasis progression in osteosarcoma patients
  • the development of multispectral imaging to detect melanin
酸化的酒精溶液可用于区分退行性苏木精染色。

特點和優勢

  • 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.
  • Crisp and clear differentiation between cellular structures is obtainable when performed according to Sigma-Aldrich Procedure No. GHS.

原則

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.

訊號詞

Danger

危險分類

Eye Irrit. 2 - Flam. Liq. 2 - Met. Corr. 1 - STOT SE 2

標靶器官

Eyes,Central nervous system

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

71.6 °F

閃點(°C)

22 °C


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