Haematoxylin - definitie. Wat is Haematoxylin
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Wat (wie) is Haematoxylin - definitie

CHEMICAL COMPOUND USED AS A HISTOLOGIC STAIN AND HISTORICALLY AS A BLUE AND BLACK DYE FOR TEXTILES
Hematoxylin; Natural Black 1; C.I. 75290; Hydroxybrazilin
  • hematoxylin and eosin (H&E)]].
  • '''Logwood''' (''Haematoxylum campechianum'') chips
  • Hematoxylin solution for staining microscopy slides.

haematoxylin         
[?hi:m?'t?ks?l?n]
(US hematoxylin)
¦ noun Chemistry a colourless compound present in logwood, which is easily converted into dyes and is used as a biological stain.
Origin
C19: from mod. L. Haematoxylum (genus name), from haemato- + Gk xulon 'wood'.
Hematoxylin         
·noun Haematoxylin.
H&E stain         
HISTOLOGICAL STAIN METHOD USING HEMATOXYLIN AND EOSIN
H&E; Haematoxylin and eosin stain; H & E; Hematoxylin & eosin; Hematoxylin and eosin stain; HE stain; HE staining; H&E stains; Hematoxylin-eosin stain; H&E staining; Hematoxylin and eosin
Hematoxylin and eosin stain (or haematoxylin and eosin stain or hematoxylin-eosin stain; often abbreviated as H&E stain or HE stain) is one of the principal tissue stains used in histology. It is the most widely used stain in medical diagnosis and is often the gold standard.

Wikipedia

Haematoxylin

Haematoxylin or hematoxylin (), also called natural black 1 or C.I. 75290, is a compound extracted from heartwood of the logwood tree (Haematoxylum campechianum) with a chemical formula of C
16
H
14
O
6
. This naturally derived dye has been used as a histologic stain, ink and as a dye in the textile and leather industry. As a dye, haematoxylin has been called Palo de Campeche, logwood extract, bluewood and blackwood. In histology, haematoxylin staining is commonly followed (counterstained), with eosin, when paired, this staining procedure is known as H&E staining, and is one of the most commonly used combinations in histology. In addition to its use in the H&E stain, haematoxylin is also a component of the Papanicolaou stain (or PAP stain) which is widely used in the study of cytology specimens.

Although the stain is commonly called haematoxylin, the active colourant is the oxidized form haematein, which forms strongly coloured complexes with certain metal ions (commonly Fe(III) and Al(III) salts). In its pure form, haematoxylin is a colourless and crystalline solid, although commercial samples are typically light to dark-brown based on the level of impurities present.