Du sökte efter: Standarder för kromatografi
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.
VWR®, n-Heptane, secondary reference standard for GC, PESTINORM®
Supplier: VWR Chemicals
A secondary GC solvent reference standard for various chromatographic and analytical applications.
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VWR® PESTINORM®, 2,2,4-Trimethylpentane, 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®, Ethanol, Secondary Reference Standard for GC
Supplier: VWR Chemicals
A secondary GC solvent reference standard for various chromatographic and analytical applications.
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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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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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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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Polyethylene glycol Standard ReadyCal Set Mp 102-40′000, for GPC
Supplier: Merck
Set contains 12 different polyethyleneglycol standards with Mp ~106, ~330, ~420, ~600, ~1500, ~2010, ~3120, ~6240, ~8600, ~12000, ~23000, ~40000; 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
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VWR® PESTINORM®, Cyclohexane, 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®, N,N-Dimethylformamide, secondary reference standard for GC, PESTINORM®
Supplier: VWR Chemicals
A secondary GC solvent reference standard for various chromatographic and analytical applications.
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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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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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Poly(Bisphenol A carbonate), analytical standard, Supelco®
Supplier: Merck
GPC Standard, Poly(Bisphenol A carbonate), Supelco®, 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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Poly(acrylic acid sodium salt) analytical standards, for GPC
Supplier: Merck
Poly(acrylic acid sodium salt) is a hydrophilic polymer, which can find wide applications in the production of consumer product like diapers, because of its ability to absorb many more times its mass in water.
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Polystyrene, analytical standards for GPC
Supplier: Merck
GPC Standard, ~1020 Mn, Mw/Mn ~1,10, Supelco®
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Polystyrene (low molecular) Standard ReadyCal Set M(p) 250-70000 for GPC
Supplier: Merck
Set contains 12 different polystyrene standards with Mp ~266, Mp ~374, Mp~1100, Mp~1920, Mp~2950, Mp ~4870, Mp ~7200, Mp~10400, Mp ~15700, Mp ~19600, Mp ~34800, Mp ~67500; always 4 standards are lyophilised in a 1,5ml vial (yellow, blue or black); for 1 complete calibration use one of each of the yellow, blue and black vials; 1 set contains 30 vials for 10 complete calibrations.
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Nonpolar column test mix, certified reference material, Supelco®
Supplier: Merck
Nonpolar Column Test Mix, TraceCERT®, Supelco®, 500 mug/mL in dichloromethane, Certified reference material, Pk Info: ampule of 2 mL
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Poly(butyl acrylate) solution, Mw 60000 (Typical), average Mn 20000 (Typical), analytical standard, Supelco®
Supplier: Merck
GPC Standard, Poly(butyl acrylate) solution, Mw 60000 (Typical), average Mn 20000 (Typical), Supelco®, 25 wt. % in toluene, Analytical standard
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Polyethylene analytical standards, for GPC
Supplier: Merck
GPC Standard, ∼2010 Mw, Mw/Mn ~1,12, Supelco®
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VWR® PESTINORM®, Di-isopropyl Ether, Stabilised, Secondary Reference Standard for GC
Supplier: VWR Chemicals
Stabilised with BHT (2,6-Di-tert-butyl-p-cresol, 2,6-Di-tert-butyl-4-methylphenol, Ionol) 40 ppm. A secondary GC solvent reference standard for various chromatographic and analytical applications.
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VWR® PESTINORM®, Fatty Acid Methyl Esters (FAME) Standards for GC
Supplier: VWR Chemicals
Avantor offers an extensive range of FAME standards as Certified Reference Materials under the well-known PESTINORM® brand.
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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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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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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®, tert-Butyl Methyl Ether, 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®, 1,4-Dioxane, Stabilised, Secondary Reference Standard for GC
Supplier: VWR Chemicals
Stabilised with BHT (2,6-Di-tert-butyl-p-cresol, 2,6-Di-tert-butyl-4-methylphenol, Ionol) 20 ppm. A secondary GC solvent reference standard for various chromatographic and analytical applications.
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VWR® PESTINORM®, 1,2-Dichloroethane, Secondary Reference Standard for GC
Supplier: VWR Chemicals
A secondary GC solvent reference standard for various chromatographic and analytical applications.
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Standards for saturated/monounsaturated fatty acids, LC-MS mixture
Supplier: Cayman Chemical
Saturated or monounsaturated fatty acid LC-MS mixture contains various saturated or unsaturated fatty acids. The mixture is supplied in an amber ampule in which the headspace has been purged with argon to prevent lipid oxidation. This product has been designed for direct use in LC-MS applications.