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.
Poly(2-vinylpyridine), analytical standards, Supelco®
Supplier: Merck
GPC Standard, Mw 37,500 (Typical), Supelco®, Glass bottle
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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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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(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(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(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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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, 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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Poly(styrenesulfonic acid sodium salt) analytical standards for GPC
Supplier: Merck
GPC Standard, ~10600 Mw, Mw/Mn ≤1,20, Supelco®
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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(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 standards, LiChroTest®, Supelco®
Supplier: Merck
Standard samples for HPLC System Qualification.
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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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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(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(butylmethacrylate), analytical standard, for GPC
Supplier: Merck
GPC Standard, ∼682000 Mn, Mw/Mn ~1,06, Supelco®
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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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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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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(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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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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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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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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Reference substances for GC analysis, Supelco®
Supplier: Merck
Reference substances can be used for the identification of unknown compounds in a gas chromatogram or as standards in quantitative GC analysis. They serve also for the characterisation of GC column properties.
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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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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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Polystyrene standard ReadyCal set Mp 400-2000000, analytical standards for GPC
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.