Supplier: Merck

Certified Reference Microorganisms

Supplier: Merck

Certified Reference Microorganisms

Supplier: Merck

Organic Standard, Cyclohexane

Supplier: Merck

Organic Standard, Dimethylformamide

Supplier: Merck

The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques. The CRM may also find the following uses:

Supplier: Merck

Organic Standard, 2-Butanol

Supplier: Merck

Organic Standard, Erythritol

Supplier: Merck

This formulation is designed for evaluating how reliably a chromatographic system is providing such fundamentally important parameters as flow rate, proportioning, and mixing.

Supplier: Merck

Certified Reference Microorganisms

Supplier: Merck

The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques. Tepraloxydim CRM may also be used as given below:

Supplier: Merck

Traceable to USP 1054000.

Supplier: Merck

Traceable to USP 1524806.

Supplier: Merck

Certified Reference Microorganisms

Supplier: Merck

This test mix is based on the comprehensive mix developed by Grob (Grob, et al., J. Chromatogr. 156 (1978) p. 1)

Supplier: VWR Chemicals

Matériaux de référence certifiés (MRC) pour l'indice de réfraction, idéals pour vérifier et étalonner des réfractomètres à température contrôlée; chaque MRC délivre des valeurs certifiées pour des mesures d'indice de réfraction à 20, 25 et 30 °C.

Supplier: Merck

Organic Standard, Triethyl citrate

Supplier: Merck

Certified Reference Microorganisms

Supplier: Merck

It is intended to be used as a certified reference material (CRM) for calibration in chromatography and other analytical techniques. Isazophos CRM may also find its use as described below:

Supplier: Merck

Colour standard, Color-WP, Supelco®

Supplier: Merck

Ready to use certified reference material mixture suitable as calibrant for te testing of allergenic fragrances and their isomers according th the IFRA method. 24 analytes in tert-Butyl methyl ether (MTBE)

Supplier: Merck

It is intended to be used as a certified reference material (CRM) for calibration in chromatography and other analytical techniques. Dichlofluanid CRM may also find its use as described below:

Supplier: Merck

The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques. Thiofanox CRM may also be used as given below:

Supplier: Merck

Organic Standard, Aroclor 1254 solution, 5 ml/ampule

Supplier: Merck

Organic Standard, Perylene-d12 solution, 1 ml/ampule

Supplier: Merck

Organic Standard, N-Nitrosodi-n-propylamine solution, 1 ml/ampule

Supplier: Merck

Organic Standard, Methylene Chloride

Supplier: Merck

MALDI Standards are suitable for the validation and comparison of MALDI-ToF instruments. Certificates provide MALDI spectra including Mw, Mn and Mp values of select narrow polymers, which differ in molar mass.

Supplier: Merck

This standard solution is intended for use as a certified reference material for ICP/AAS.

Supplier: Merck

The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques. The diclofop-methyl CRM may find its use as described below:

Supplier: Merck

This certified reference material is useful for determining relative retention times and approximating response factors.