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1.01603

Sigma-Aldrich

Gram-Color modified

(phenol-free) staining kit for Gram staining method on bacteriological smears

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About This Item

Code UNSPSC :
41116130
Nomenclature NACRES :
NA.74

Niveau de qualité

400

Ne contient pas

phenol

IVD

for in vitro diagnostic use

Technique(s)

Gram staining: suitable

Application(s)

clinical testing
diagnostic assay manufacturing
hematology
histology

Température de stockage

15-25°C

Description générale

The Gram-Color modified (phenol-free) - staining kit for Gram staining method on bacteriological smears, is used for human-medical cell diagnosis and serves the purpose of the bacteriological investigation of sample material of human origin from smears of body fluids. Gram-Color modified is a staining kit which is used for a modified Gram staining. The Gram-Color modified solutions are modified and designed in such a way that staining can be carried out on the staining rack. In bacteriology, the Gram staining allows a fast differentiation of bacteria in Gram-positive and Gram-negative. The mureine structure of the bacteria wall is the basis of the color affinity. In the first step, bacteria will be stained with crystal violet an aniline dye. After the treatment with iodine solution (Lugol′s solution), a dye-iodine complex will form. During the decolorizing step, this complex stays in the multilayer mureine structure of the cell wall of Gram-positive bacteria - they will appear blue-violet. Gram-negative bacteria, by contrast, have a cell wall consisting of a single-layered murein structure, and correspondingly re-release the staining dye with the decoloring solution. Gram-negative bacteria will be counterstained with fuchsin solution and will then appear red.
The kit is sufficient for up to 65-70 applications. This product is registered as IVD and CE marked. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

Remarque sur l'analyse

Suitability for microscopy: passes test
gram-positve microorganisms: dark blue
gram-negative microorganisms: red

Mention d'avertissement

Danger

Classification des risques

Aquatic Chronic 3 - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - STOT SE 3

Organes cibles

Central nervous system

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

14.0 °F

Point d'éclair (°C)

-10 °C

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