You searched for: Étalons de chromatographie gazeuse

Frequently used for calibration, the chromatography standards have a known concentration to test separating equipment for performance faults. Analytical equipment error would impact the dependability of retention time, purity, molecular weight, and compound identification conclusions. Improving data quality, the substances allow personnel to plot analyte signal ratios and obtain concentrations from a calibration curve. Chromatography standards verify instruments are suitable for intended ion exchange, gel filtration, and hydrophobic interaction procedures.

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Poly(methacrylic acid sodium salt) analytical standards, for GPC, Supelco®

Supplier: Merck

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

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Peptide and protein MALDI-MS calibration kit, ProteoMass™, Supelco®

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.

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Poly(α-methylstyrene) analytical standards, for GPC

Supplier: Merck

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

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Corning Life Sciences

Why Choose Corning Fetal Bovine Serum?

Our vertically integrated FBS serum supply chain, from collection to scientist, allows us to provide a consistent supply of FBS.

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Tétrahydrofurane (THF), étalon de référence secondaire pour la GC, PESTINORM®

Supplier: VWR Chemicals

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

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Poly(ethylene glycol) analytical standards, for GPC, Supelco

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.

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Reversed phase test mix, in methanol: water (3:2) (varied conc.), certified reference material, Supelco®

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

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Poly(2-vinylpyridine), analytical standards, Supelco®

Supplier: Merck

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

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Poly(lauryl methacrylate) solution, Mw 570000 (Typical), average Mn 290000 (Typical), analytical standard, Supelco®

Supplier: Merck

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

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HPLC isocratic systems diagnostics mix, in methanol: water (3:2) (varied concentration), certified reference material, Supelco®

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.

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Substances de référence

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.

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LiChroTest®, Supelco®

Supplier: Merck

Standard samples for HPLC System Qualification.

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Programmed test mix, in dichloromethane (varied conc.), certified reference material, Supelco®

Supplier: Merck

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

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Poly(styrenesulfonic acid sodium salt) analytical standards for GPC

Supplier: Merck

GPC Standard, ~32000 Mw, Mw/Mn ~1,1, Supelco®

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Poly(dimethylsiloxane) analytical standard, for GPC

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.

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Poly(Bisphenol A carbonate) analytical standards kit, molecular weight series, for GPC

Supplier: Merck

Poly(Bisphenol A carbonate) (PC) is a thermoplastic material. It is injected in molding operations and is majorly studied to understand its thermal behaviour, especially thermal degradation property.

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MALDI validation set polystyrene Mp ~700 - 70000, certified reference material, Supelco®

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.

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Poly(acrylic acid), average Mn 130000 (Typical), analytical standard, Supelco®

Supplier: Merck

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

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Polar column test mix, certified reference material, Supelco®

Supplier: Merck

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

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Poly(dimethylsiloxane), average Mw 95000 (Typical), average Mn 50000 (Typical), analytical standard, Supelco®

Supplier: Merck

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

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Test mixture 2 for apolar capillary columns according to Grob, for GC

Supplier: Merck

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

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Poly(Bisphenol A carbonate), analytical standard, Supelco®

Supplier: Merck

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

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Dichlorométhane (DCM) stabilisé, étalon de référence secondaire pour la GC, PESTINORM®

Supplier: VWR Chemicals

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

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HPLC gradient system diagnostics mix, in methanol: water (3:2) (varied concentration), certified reference material, Supelco®

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.