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1.15973

Sigma-Aldrich

Weigert′s iron hematoxylin kit

for nuclear staining in histology

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About This Item

UNSPSC Code:
41116124
NACRES:
NA.41
Pricing and availability is not currently available.

Quality Level

IVD

for in vitro diagnostic use

application(s)

clinical testing
diagnostic assay manufacturing
hematology

storage temp.

15-25°C

General description

Weigert′s iron hematoxylin kit - for nuclear staining in histology is a ready to use staining kit used for human-medical cell diagnosis and serves the purpose of the histological investigation of sample material of human origin, for example histological sections of e. g. the liver, the kidney, the intestine, the placenta and similar. Aluminium hematoxylins (e. g. nuclear fast red aluminium sulfate) are washed out of the tissue sections by acidic staining solutions. Iron hematoxylin solutions (e. g. Weigert′s iron hematoxylin), on the other hand, are acid-resistant and are preferentially used for staining nuclei in histological tissue sections in which counterstaining is done with acidic staining solutions. Examples here include the visualization of elastic fibers according to the van Gieson method (e. g. Elastica van Gieson (Product number 1.15974)) and the various trichromo connective-tissue staining methods (e. g. according to Masson-Goldner (Product number 1.00485). Commonly used hemalum solutions such as Mayer′s Hemalum, Delafield, Gill and Harris tend to procedure also weak nucleic staining only when used with acidic counter-stains.The kit contains two solutions; an alcoholic hematoxylin solution and a hydrochloric acid iron(III)nitrate solution, which are ready-to-use and should be applied at 3-5 μm paraffin sections.
The package is sufficient for 400 - 500 applications. Weigert′s Iron hematoxylin kit is an IVD & CE product and can be used in the clinical laboratory for diagnostics. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

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FlameCorrosion

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Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

3 - Flammable liquids

WGK

WGK 1


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C M Davies et al.
European cells & materials, 11, 57-75 (2006-04-14)
This paper introduces the culture preparation of ovine, bovine and human cancellous bone cores to be used in an explants model Zetos. The three dimensional (3D) bone cores were prepared and evaluated for all three animals. Bone cells in vivo
Chi-Feng Weng et al.
Frontiers in physiology, 10, 1445-1445 (2020-01-11)
Adipose-derived stem cells (ADSCs) have shown great promise for the treatment of myocardial infarction (MI), although their potential therapeutic mechanism remains poorly understood. Growing evidence has implicated microRNAs (miRNAs or miRs) in the biological processes whereby ADSCs could ameliorate cardiovascular

Questions

1–2 of 2 Questions  
  1. Can Weigert's Iron Hematoxylin be used to demonstrate iron in bone marrow smears?

    1 answer
    1. The Weigert's Hematoxylin Iron solutions are intended for nuclear staining and are less prone to wash out of cells/tissues. These kits are suitable for staining bone marrow smears, but caution is advised when decalcifying bone marrow sections, as harsh acids may remove the iron from the tissue.

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  2. Is it possible to use 1159730002 on fresh tissue?

    1 answer
    1. The Weigert's Iron Hematoxylin (1159730002) is typically used on either FFPE (formalin-fixed paraffin-embedded tissue) or fresh frozen tissue that has been fixed prior to staining with Weigert's Iron Hematoxylin. Since the solution is not osmotically balanced, the working solution is not intended for use on unfixed tissue. It is note that fixation with either formalin or Bouin's Solution and do not mention staining unfixed tissue. Although the IFU does not specifically mention fresh frozen tissue that has been sectioned on a cryostat and fixed prior to staining, Weigert's should be able to stain fixed tissue specimens.

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