You searched for: Chromatography Standards

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(Bisphenol A carbonate), analytical standard, Supelco®

Supplier: Merck

GPC Standard, Poly(Bisphenol A carbonate), 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(2-vinylpyridine), analytical standards, Supelco®

Supplier: Merck

GPC Standard, Mw 159,000 (Typical), Supelco®, Glass bottle

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Dimethylpolysiloxane set of analytical standards, molecular weight series

Supplier: Merck

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

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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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Poly(butylmethacrylate), analytical standard, for GPC

Supplier: Merck

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

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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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Nucleosides test mix, analytical standard, Supelco®

Supplier: Merck

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

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Polystyrene, analytical standards for GPC

Supplier: Merck

GPC Standard, Mw 2000000 (typical), Supelco®

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Polystyrene, average Mw 290000 (typical), average Mn 130000 (typical), analytical standard, Supelco®

Supplier: Merck

GPC Standard, Polystyrene, average Mw 290000 (typical), average Mn 130000 (typical), Supelco®, Analytical standard

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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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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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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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Poly(methyl methacrylate) PMMA, analytical standard, for GPC

Supplier: Merck

Poly(methyl methacrylate) is a rigid and transparent type of polymer material. It is obtained via polymerization of methyl methacrylate monomer.

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Polyethylene analytical standards, for GPC

Supplier: Merck

GPC Standard, ∼2010 Mw, Mw/Mn ~1,12, Supelco®

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Poly(vinyl chloride), average Mw 85000 (Typical), average Mn 40000 (Typical), analytical standard, Supelco®

Supplier: Merck

GPC Standard, Poly(vinyl chloride), average Mw 85000 (Typical), average Mn 40000 (Typical), Supelco®, Analytical standard

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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, Pk Info: ampule of 1 mL

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VWR® PESTINORM®, 2-Propanol, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, Methanol, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, Ethyl Acetate, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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Reversed phase test mix 2, certified reference material, Supelco®

Supplier: Merck

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

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VWR® PESTINORM®, iso-Butyl Methyl Ketone, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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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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Poly(styrenesulfonic acid sodium salt) analytical standards for GPC

Supplier: Merck

GPC Standard, ~4300 Mw, Mw/Mn ~1,2, Supelco®

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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, Pk Info: ampule of 2 mL

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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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HPLC standards, LiChroTest®, Supelco®

Supplier: Merck

Standard samples for HPLC System Qualification.

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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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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.