"Buffer Solution - Blue"

Supplier: SIGMA ALDRICH MICROSCOPY

Bromophenol Blue–Xylene Cyanol Dye solution has been used in the formamide loading buffer for the size purification of ligated RNA from polyacrylamide gel.

Supplier: Avantor

La qualité de nombreux réactifs BAKER ANALYZED™ satisfait ou dépasse les exigences définies par l'American Chemical Society (ACS).

Supplier: REAGECON

Colour coded pH buffer solutions for the calibration of pH meters.

Supplier: Hach

For calibration of pH meters

Supplier: SIGMA ALDRICH MICROSCOPY

Certified for Giemsa stain for blood films and for the Wolbach′s Giemsa method for paraffin sections. Giemsa is a versatile polychromatic stain, which is suitable for staining a diverse range of specimens. It is a buffered thiazine-eosinate solution designed to provide coloration of blood cells. Giemsa’s stain is frequently used for diagnostic purposes in hematology to differentiate the nuclear and cytoplasmic morphology of platelets, RBCs, WBCs, and parasites. It is frequently used in combination with other dye solutions as May-Grunwald’s solution for Pappenheim (MGG) and Wright-Giemsa. The Giemsa stain was adapted to histology due to its unique staining of chromatin, nuclear membranes, and cytoplasmic elements. Giemsa′s staining solution is composed of methylene blue, azure, and eosin.

Supplier: Thermo Fisher Scientific

pH Buffer solution, colour coded, Carbonate, Valeur pH: 10,00, ±0,01, Température de réference: 25 °C, Specpure®, bleu, Flacon

Supplier: VWR Chemicals

Indicator tablets for determination of water hardness by titration with EDTA.

Specifications
Minimum weight: ≥ 0.20 g
Maximum weight: ≤ 0.23 g
Disintegration time (at 25°C): ≤ 150 s
Application test: conforms

The tablets are dissolved in 100 ml of the water sample to be tested, which has been buffered at pH 10 with 1 ml of Ammonia/ Ammonium chloride buffer solution, and then titrated with EDTA solution (0,01 M) till the sample turns from red to blue.
Total hardness in mg/l = 10×ml of titrant used.

Control samples of  calcium carbonate should be used to calibrate the method.

Supplier: HyClone products (Cytiva)

Trypan Blue solution, 0,4%, is routinely used as a cell stain to assess cell viability using the dye exclusion test.

Supplier: Thermo Orion

Ionic strength adjustors are used for analysis with ion selective electrodes, and special reagents are used with some ion selective electrodes.

Supplier: G-Biosciences

TMB is a widely used chromogenic substrate for horseradish peroxidase (HRP) in colorimetric assays. As a free base, it is typically dissolved in an organic solvent or buffer to prepare TMB substrate solutions for ELISA, Western blotting, and immunohistochemistry.

Supplier: Avantor

Concentré volumétrique, pour dilution à 500 ml.

Supplier: Honeywell Chemicals

These buffer solutions are colour-coded for easy identification and the pH 4 and 7 version have fungicide additive.

Supplier: SIGMA ALDRICH MICROSCOPY

Zinc formalin fixative is a non-precipitating fixative. This fixative is compatible with histochemical, immunochemical and special stains. It may be used with automated tissue processors and also in manual methods. The zinc chloride component of the formulation increases the rigidity of cellular components to withstand subsequent processing, sectioning and staining procedures. Tissue specimens initially fixed using 10% neutral buffered formalin solution may be post-fixed using the zinc formalin fixative.

Supplier: Abcam

Flow Cytometry Fixation & Permeabilization Kit ab314689 contains optimally formulated buffers for fixation and permeabilization of cells for immunofluorescence staining of intracellular antigens for analysis by flow cytometry.

Supplier: Thermo Fisher Scientific

Chloronaphthol (4-CN) is a peroxidase substrate used for chromogenic detection of HRP in immunoblotting and immunohistochemical applications. This product is less sensitive than other precipitating substrates, but the distinct blue to blue-purple precipitate photographs well and can be useful in double-staining applications. The coloured product is soluble in alcohol and xylenes, but is not soluble in aqueous buffers. The 1-Step Chloronaphthol is supplied ready to use.

Supplier: Thermo Orion

Les solutions en sachets garantissent une précision optimale. Le sachet garantit une excellente étanchéité aux liquides et une bonne protection contre la lumière.