"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

The quality of many BAKER ANALYZED™ reagents meets or exceeds the requirements set forth by the American Chemical Society (ACS).

Supplier: VWR Chemicals

This loading dye base is used for custom loading buffer preparation. It is a concentrated solution containing patent blue, bromophenol blue and amaranth tracking dyes, which migrate at approximately 4 000, 400 and 10 bp, on a 1% agarose gel, respectively.

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, Carbonaat, pH-waarde: 10,00, ±0,01, Referentietemperatuur: 25 °C, Specpure®, blauw, Plastieke fles

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: Merck

Materials for the precise calibration and monitoring of pH meters.

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

Volumetric concentrate, for dilution to 500 ml.

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: Honeywell Chemicals

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

Supplier: Thermo Orion

Perform accurate, reproducible pH calibrations with Orion™ pH buffers.

Supplier: Hach

The unit-dose powder pillows assure buffer freshness and eliminate the possibility of contamination. Each powder pillow prepares 50 ml of buffer solutions of respective pH.