Votre recherche pour: Disulfure+de+bis(4-nitroph\\u00E9nyle)

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Ammonium-fer (III) sulfate dodécahydraté 99.0-101.0%, AnalaR NORMAPUR® pour analyses

Fournisseur: VWR Chemicals

Description: Ammonium-fer (III) sulfate dodécahydraté 99.0-101.0%, AnalaR NORMAPUR® pour analyses

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Bleu patente V sel de sodium pour la microscopie C.I. 42051, Sigma-Aldrich®

Fournisseur: SIGMA ALDRICH MICROSCOPY

Description: Patent blue V sodium salt has been used as a stain in pharmacology. It is mainly used as a food color.

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Bleu de méthylène solution pour la microbiologie, Sigma-Aldrich®

Numéro de catalogue: (50484-100ML-F)

Fournisseur: SIGMA ALDRICH MICROSCOPY

Description: Ehrlich’s reagent III, Loeffler’s Methylene Blue. Methylene Blue was earlier recognized as a good nuclear stain, the staining solutions are always either aged or alkalized, if not both. More importantly it is an excellent stain for ribonucleic acid, which is the important stainable constituent of bacterial bodies, of lymphocyte and hemoportoal cytoplasm, and of nerve cell tigroid granules. It can also be employed in capsule stain. The capsule stain begins as a negative stain leaving the organisms colorless. The capsule are clearly seen as halo surrounding the bacterial cell. Another staining procedure is performed with nigrosin (Cat. No. 43925).

UOM: 1 * 100 mL

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Bleu de tétrazole ≥95.0% (par analyse titrimétrique) pour recherche biochimique

Fournisseur: TCI

Description: Bleu de tétrazole ≥95.0% (par analyse titrimétrique) pour recherche biochimique

Bleu de tétrazole pour la détermination colorimétrique des composés réducteurs, Sigma-Aldrich®

Fournisseur: SIGMA ALDRICH MICROSCOPY

Description: Tetrazolium blue chloride (BTC) is a colorless tetrazolium compound that upon reduction forms a colored diformazan. The reactivity has been applied to the analysis of reducing compounds including the nanomolar detection of reducing sugars and carbidopa and methyldopa. BTC has been used for histological staining of mouse coronal brain sections and rat brain sections. In combination with 4-nitrocatechol, tetrazolium blue chloride forms a ternary complex with molybdenum(VI) for extraction and spectrophotometric determination of molybdenum. It has also been used to stain Francisella tularensis cells for tularemic microagglutination test.