100 Ergebnisse für Gaschromatographie-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.

Sortieren nach

« ‹ 1 2 3 › »

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

Supplier: Merck

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

Expand 3 Items

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

Supplier: Merck

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

Expand 1 Items

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.

Expand 3 Items

Nucleoside Testmischung, analytischer Standard, Supelco®

Supplier: Merck

HPLC-Standard, Nucleoside Testmischung, Supelco®, in 1% Natriumformiat (unterschiedliche Konz.), Analytischer Standard, Pk Info: Ampulle mit 1 mL

Expand 1 Items

Poly(butylmethacrylate), analytical standard, for GPC

Supplier: Merck

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

Expand 1 Items

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

Supplier: Merck

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

Expand 3 Items

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.

Expand 1 Items

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

Expand 1 Items

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

Supplier: Merck

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

Expand 1 Items

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

Expand 1 Items

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.

Expand 1 Items

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.

Expand 1 Items

Poly(styrenesulfonic acid sodium salt) analytical standards for GPC

Supplier: Merck

GPC Standard, ~2613000 Mw, Mw/Mn ~1,2, Supelco®

Expand 8 Items

Tetrahydrofuran (THF), sekundärer Referenzstandard für die GC, PESTINORM®

Supplier: VWR Chemicals

Ein sekundärer GC-Lösungsmittel-Referenzstandard für verschiedene chromatographische und analytische Anwendungen.

Expand 1 Items

HPLC standards, LiChroTest®, Supelco®

Supplier: Merck

Standard samples for HPLC System Qualification.

Expand 6 Items

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.

Expand 1 Items

Polystyrene, analytical standards for GPC

Supplier: Merck

GPC Standard, Mw 2000000 (typical), Supelco®

Expand 23 Items

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.

Expand 1 Items

Polyethylene analytical standards, for GPC

Supplier: Merck

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

Expand 1 Items

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.

Expand 1 Items

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.

Expand 1 Items

Polyethylene glycol Standard ReadyCal Set Mp 200-1200000, for GPC, Supelco

Supplier: Merck

Set contains 10 different polyethylene glycol/polyethylene oxide standards with Mp ~194, ~970, ~2010, ~4450, ~15000, ~22100, ~62000, ~217000, ~490000, ~1190000; always 3 or 4 standards are lyophilised in a 1,5 ml vial (black, blue or yellow); for 1 complete calibration use one of each of the black, blue and yellow vials; 1 set contains 30 vials for 10 complete calibrations.

Expand 1 Items

Cyclohexan, sekundärer Referenzstandard für die GC, PESTINORM®

Supplier: VWR Chemicals

Ein sekundärer GC-Lösungsmittel-Referenzstandard für verschiedene chromatographische und analytische Anwendungen.

Expand 1 Items

N,N-Dimethylformamid, sekundärer Referenzstandard für die GC, PESTINORM®

Supplier: VWR Chemicals

Ein sekundärer GC-Lösungsmittel-Referenzstandard für verschiedene chromatographische und analytische Anwendungen.

Expand 1 Items

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

Expand 1 Items

VWR® PESTINORM®, Dichlormethan (DCM), Stabilisiert, Sekundärer Referenzstandard für die GC

Supplier: VWR Chemicals

Ein sekundärer GC-Lösungsmittel-Referenzstandard für verschiedene chromatographische und analytische Anwendungen.

Expand 1 Items

Umkehr-Phasen-Testmischung, in Methanol: Wasser (3:2) (unterschiedliche Konz.), zertifiziertes Referenzmaterial, Supelco®

Supplier: Merck

HPLC-Standard, Umkehr-Phasen-Testmischung, in Methanol: Wasser (3:2) (unterschiedliche Konz.), TraceCERT®, Supelco®, Zertifiziertes Referenzmaterial, Pk Info: Ampulle mit 1 mL