Vous avez recherché : Étalons de chromatographie gazeuse

Supplier: Agilent

L'échantillon standard OQ/PV pour l'espace libre contient 0,2 - 0,3% de t-butyl disulfide, 1,2-dichlorobenzène et du nitrobenzène dans de l'éthanol.

Supplier: Merck

Les substances de référence peuvent être utilisées pour l'identification des composés inconnus dans un chromatogramme en phase gazeuse ou en tant que standards dans l'analyse GC quantitative. Elles servent également à la caractérisation des propriétés des colonnes GC.

Supplier: Merck

This kit features a convenient selection of pre-qualified standard peptides, proteins, matrices, and solvents for calibrating and testing matrix assisted laser desorption ionisation (MALDI) mass spectrometers.

Supplier: Merck

Poly(α-methylstyrene) may find applications as a radical producing agent, in the thermal degradation of polystyrene.

Supplier: Merck

GPC Standard, ~18600,Mw, Mw/Mn <1,20, Supelco®

Supplier: VWR Chemicals

Étalon de référence secondaire de solvant dans la GC, pour diverses applications chromatographiques et analytiques.

Supplier: Merck

GPC Standard, Mw 37,500 (Typical), Supelco®, Glass bottle

Supplier: Merck

GPC Standard, Poly(lauryl methacrylate) solution, Mw 570000 (Typical), average Mn 290000 (Typical), Supelco®, 25 wt. % in toluene, Analytical standard

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

HPLC Standard, Reversed Phase Test Mix, in methanol: water (3:2) (varied conc.), TraceCERT®, Supelco®, Certified reference material, Info cdt: ampule of 1 mL

Supplier: Merck

Poly(ethylene glycol) is the most widely used non-ionic, hydrophilic polymer, which can find wide applications in biomedical industry such as in drug delivery systems.

Supplier: VWR Chemicals

Étalon de référence secondaire de solvant dans la GC, pour diverses applications chromatographiques et analytiques.

Supplier: Merck

Set contains 12 different polystyrene standards with Mp ~374, ~1620, ~3420, ~9130, ~18100, ~32500, ~67500, ~128000, ~246000, ~659000, ~1000000, ~2180000; always 4 standards are lyophilised in a 1,5 ml vial (green, red or white); for 1 complete calibration use one of each of the green, red and white vials; 1 set contains 30 vials for 10 complete calibrations.

Supplier: Merck

HPLC Standard, Reversed Phase Test Mix 2, TraceCERT®, Supelco®, in acetonitrile: water (varied conc.) solution, Certified reference material, Info cdt: ampule of 1 mL

Supplier: Merck

Set contains 10 different polyethylene glycol/polyethylene oxide standards with Mp ~194, ~970, ~2010, ~4450, ~15000, ~22100, ~62000, ~217000, ~490000, ~1190000; always 3 or 4 standards are lyophilised in a 1,5 ml vial (black, blue or yellow); for 1 complete calibration use one of each of the black, blue and yellow vials; 1 set contains 30 vials for 10 complete calibrations.

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

Clear, colorless fluid polymer useful as a stationary phase in gas chromatography and as an anti-foaming agent.

Supplier: Merck

GPC Standard, ∼682000 Mn, Mw/Mn ~1,06, Supelco®

Supplier: Merck

HPLC Standard, Nucleosides Test Mix, Supelco®, in 1% sodium formate (varied conc.), Analytical standard, Info cdt: ampule of 1 mL

Supplier: Merck

GPC Standard, Poly(dimethylsiloxane), average Mw 95000 (Typical), average Mn 50000 (Typical), Supelco®, Analytical standard

Supplier: Merck

Polar Column Test Mix, TraceCERT®, Supelco®, 500 mug/mL each component in dichloromethane, Certified reference material, Info cdt: ampule of 2 mL

Supplier: Merck

Standard for GC, Test mixture 2 for apolar capillary columns according to Grob, Supelco®, ready-to-use

Supplier: Merck

GPC Standard, Poly(Bisphenol A carbonate), Supelco®, Analytical standard

Supplier: VWR Chemicals

Due to its excellent separation capacity and its high sensitivity gas chromatography is a widely used technique for analytical purposes. In order to get proper identification and quantification results of the analysed compounds, reference standards are needed. These PESTINORM® reference substances can be used for the characterisation of GC column properties. In addition they may also be used for the identification of unknown compounds in a gas chromatogram or as standards in quantitative GC analysis.

Supplier: VWR Chemicals

Étalon de référence secondaire de solvant dans la GC, pour diverses applications chromatographiques et analytiques.

Supplier: VWR Chemicals

Étalon de référence secondaire de solvant dans la GC, pour diverses applications chromatographiques et analytiques.

Supplier: Merck

Standard samples for HPLC System Qualification.

Supplier: Merck

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

Supplier: Merck

Poly(dimethylsiloxane) [PDMS] is a polymer. It is a stable silicone rubber. It has been used as ion selective membrane for ion-sensitive field-effect transistors, as spring material in accelerometers, elastomer on a tactile sensor and as flexible encapsulation material in decouple sensors.

Supplier: Merck

GPC Standard, Poly(acrylic acid), average Mn 130000 (Typical), Supelco®, Analytical standard