Standards

Supplier: Merck

Supelco® Pharmaceutical Secondary Standard, 6-epi-Doxycycline HCl, CRM

Supplier: Merck

Supelco® Pharmaceutical Secondary Standard, 2,2′-Bisnaloxone, CRM

Supplier: Merck

Supelco® TraceCERT® 1-Naphthol, Certified Reference Material

Supplier: Merck

Bromomethane is a broad spectrum fumigant, which can find applications in post-harvest fumigation and pest control of several foods like spices, cereals, nuts, dried fruits, fresh fruits, vegetables, turf and also nursery crops.

Supplier: Merck

Certipur® colour reference solutions are developed for ‘Method 1’ as described in chapter 2.2.2 of the European Pharmacopoeia.

Supplier: Merck

These conductivity sachets are convenient, easy to use and ensure accurate and reliable results both in the field or in the laboratory. The 30 ml sachets always provide a fresh solution preventing contamination by microorganisms, CO₂ or other substances. A conductivity sensor can be simply inserted into the sachet.

Supplier: Merck

Iron(II) ethylenediammonium sulfate CertiPUR®, secondary reference material for redox titration, Glass bottle

Supplier: Merck

Aquastar® standards for Karl Fischer titration can be used for monitoring and qualification of your Karl Fischer instruments, for checking and evaluating measuring results, and for performing titer determination of volumetric Karl Fischer reagents.

Supplier: Merck

Standard solutions are particularly used for calibrating the absorbance of spectrophotometers.

Supplier: Merck

Standard solutions are used for the calibration of spectrophotometers.

Supplier: Merck

For spectrophotometer calibration according to Ph. Eur.

Supplier: Merck

The standard solutions offered below can be adjusted to a final concentration for the measurement range of a test system by dilution. In addition, these standards can be used to prepare spiking solutions for the standard addition procedure. They provide an economic and simple method of analytical quality control.

Supplier: Merck

Safety note: These solutions are generally in acid solution.

Supplier: Merck

Reference substances can be used for the identification of unknown compounds in a gas chromatogram or as standards in quantitative GC analysis. They serve also for the characterisation of GC column properties.

Supplier: Merck

Phosphate standard, Titrisol®, 1000 mg/l, Titrisol®, Supelco®, Contents: H₃PO₄ in water, Application: Ion chromatography standards

Supplier: Merck

Chloride standard, concentrate Titrisol®, 1000 mg/l, Titrisol®, Supelco®, Matrix: H₂O, Contents: from HCl, Application: Ion chromatography standards