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Hardness quality control standard

Supplier: Hach

Description: These mixed standards are ready to use with no dilutions required. Includes standards for both total hardness and calcium hardness determination.

Certificates

ISE standard solutions

Supplier: WTW

Description: These standard solutions for calibration contain 10 g of the ion to be measured per 10 liters.

Accessories for PFP7 and PFP7/C

Supplier: Cole-Parmer

Description: Accessories for flame photometers, For: PFP7 and PFP7/C, Calcium standard solution (1000 ppm)

Description: ISE standards are used to calibrate ion selective electrode measurement systems by coresponding the electrode output with the concentration of the analyte. Pairs of standards with concentrations that differ by a factor of ten are used for analysis.

Dehydrated culture media, WL nutrient broth

Catalog Number: (SIALW2261-500G)

Supplier: Merck

Description: WL nutrient broth consists of casein enzymatic hydrolysate (5,00 g/l), yeast extract (4,00 g/l), dextrose (50,00 g/l), monopotassium phosphate (0.55 g/l), potassium chloride (0.425 g/l), calcium chloride (0.125 g/l), manganese sulphate (0.125 g/l), ferric chloride (0.0025 g/l), manganese sulphate (0.0025 g/l) and bromocresol green (0.022 g/l).

UOM: 1 * 500 g

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Atorvastatin Related Compounds, Reference Standard

Supplier: USP

Description: USP Reference Standards are specified for use in conducting official USP–NF tests and assays. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.

Tris(hydroxymethyl)aminomethane (TRIS, Trometamol)

Supplier: MP Biomedicals

Description: Tris has been useful as buffers in a wide variety of biological systems. Uses include pH control in vitro and in vivo for body fluids and in buffering systems for electrophoresis applications. Tris has been used as a starting material for polymers, oxazolones (with carboxylic acids) and oxazolidines (with aldehydes). Tris does not precipitate calcium salts and is of value in maintaining solubility of manganese salts. It can be used for the direct standardization of a strong acid solution; the equivalence point can be determined either potentiometrically or by use of a suitable indicator such as 3-(4-Dimethylamino-1-naphthylazo)-4-methoxybenzenesulfonic acid. It is an auxiliary material in pharmaceutical science.
Store at Room Temperature (15-30 °C). Store dessicated.