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.
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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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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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(2-vinylpyridine), analytical standards, Supelco®
Supplier: Merck
GPC Standard, Mw 5,000 (Typical), Supelco®, Glass bottle
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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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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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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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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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VWR® PESTINORM®, Tetrahydrofuran (THF), 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®, Dichloromethane (DCM) Stabilised, Secondary Reference Standard for GC
Supplier: VWR Chemicals
A secondary GC solvent reference standard for various chromatographic and analytical applications.
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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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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.
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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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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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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(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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Supplier: VWR Chemicals
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Supplier: Merck
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Supplier: VWR Chemicals