Vous avez recherché : Étalons de chromatographie gazeuse

Supplier: VWR Chemicals

Stabilisé au BHT (2,6-di-tert-butyl-p-crésol, 2,6-di-tert-butyl-4-méthylphénol, Ionol) avec 20 ppm. Étalon de référence secondaire de solvant dans la GC, pour diverses aptaplications chromatographiques et analytiques.

Supplier: Thermo Fisher Scientific

The Pierce mixture enables reversed phase liquid chromatography (LC) and mass spectrometry (LC-MS) users to optimise and confirm correct operation of their equipment.

Supplier: TOSOH Bioscience

These standards consists of bulk quantities of polystyrene and polyethylene oxide standards of varying molar mass and pre-mixed quantities of polystyrene polymers for calibration of GPC columns.

Supplier: AGILENT

Polypropylene glycol standard, PDI <1,15, 1 g.

Supplier: Resonac

Size Exclusion Standard, Standard SH-75, 0,5 g × 7 standards, with MW range 590000 - 7500000, PS

Supplier: PerkinElmer

HPLC Standard, Universal test mix for Reversed-phase, 5 ml

Supplier: MACHEREY-NAGEL

These test mixtures are used for controlling the performance of fused silica capillary columns and the GC system.

Supplier: PerkinElmer

This test film is an easy-to-use standard to check frequency, accuracy and any changes.

Supplier: PerkinElmer

Standard for GC, Étalon interne pour la méthode 8260B

Supplier: PerkinElmer

DSC Standard, Calibration reference material, indium, transition point 156,60 °C, Diamond™

Supplier: ACTIVE MOTIF

Standard for Liqid Chromatography, Monomethylamine 1000 mg/l in water

Supplier: Agilent

GC column test standards contains components that test the column for resolution characteristics, efficiency and inertness.

Supplier: Agilent

Standard for Liqid Chromatography, OQ/PV test sample, for refractive index detection, glycerin in water at 50, 25, 15, 10, 5 mg/ml, 5×5 ml

Supplier: Agilent

AdvanceBio SEC Protein Standards are uniquely designed for AdvanceBio SEC columns. The standards are manufactured from a select group of proteins and peptides optimized to deliver accurate, precise quantitation for mAb aggregation and protein analysis.

Supplier: VARIAN

The EasiCal system for organic solvents consists of two different combs, each with ten detachable spatulas supporting a mixture of five polymer standards with MWs selected to provide equidistant calibration points for greater accuracy.

Supplier: Agilent

Size Exclusion Standard, AdvanceBio SEC 300Å Protein Standard, lyophilized, 1.5 mL

Supplier: Agilent

Quinine sulfate 1 ppm in water 3×2 ml ampules for OQ of LC systems

Supplier: VARIAN

The quickest and most convenient method to deliver an accurate 12 point column calibration for organic and aqueous GPC/SEC column calibration.

Supplier: Agilent

Standard for GC, Alcohol in gasoline sample

Supplier: VARIAN

These hydrophilic polymers are suitable for both aqueous SEC and organic GPC using the majority of polar organic solvents. The two types are chemically similar that can be used together across a wider molecular weight range with aqueous and organic polymers.

Supplier: Agilent

Standard for GC-MS, Methyl nonadeconate in toluene, 5×10 ml

Supplier: VARIAN

Polymethylmethacrylate (PMMA) standards are extremely versatile as they can be used for organic GPC with a wide range of medium polarity eluents, such as tetrahydrofuran, toluene, methyl ethyl ketone and ethyl acetate.

Supplier: VARIAN

Polystyrene standards for many organic solvents either for conventional GPC column calibration or for calibrating light scattering and viscosity detectors that provide equidistant calibration points for greater accuracy.

Supplier: Restek

Certified reference materials (CRMs) manufactured and QC-tested in ISO-accredited labs.

Supplier: LGC Standards PROMOCHEM

This Standard Reference Material (SRM) is intended for use in the evaluation of equipment, and the validation of methodology used to measure electrophoretic mobility.

Supplier: LGC Standards PROMOCHEM

NIST-1921B, Polystyrene film - IR transmission wavelength

Supplier: Restek

Developed specifically for using LC coupled with GC-FID to accurately determine hydrocarbons found in mineral oils, which can migrate from processing equipment and packaging into food.

Supplier: Restek

Highly effective for characterising LC column parameters and tested against the NIST 870 standard.

Supplier: Restek

The amine column test mix consists of (C10) decane (0,60 mg/ml), (C12) dodecane (0.60 mg/ml, 1,2-butanediol (0.60 mg/ml), diethanolamine (DEA) (1.20 mg/ml), diethylenetriamine (1.20 mg/ml), 2,6-dimethylaniline (0.60 mg/ml), 2-nonanol (0.60 mg/ml), pyridine(0.60 mg/ml).

Supplier: Restek

Les réponses linéaires des détecteurs aux variations de concentration sont une partie importante de la qualification opérationnelle (OQ) des instruments LC. Un kit de cinq solutions aqueuses de caféine peut être utilisé pour générer des graphiques simples de la réponse UV en fonction de la concentration.