U heeft gezocht op: 4-Fluorophthalic+acid

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.

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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Catalogus nummer: (181293-10G)
Leverancier: Merck
Omschrijving: GPC Standard, Poly(acrylic acid), average Mn 130000 (Typical), Supelco®, Analytical standard
UOM: 1 * 10 g


Catalogus nummer: (181676-1SET)
Leverancier: Merck
Omschrijving: 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.
UOM: 1 * 1 EA


Catalogus nummer: (81153-100MG)
Leverancier: Merck
Omschrijving: 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.
UOM: 1 * 100 mg


Catalogus nummer: (03565-1EA)
Leverancier: Merck
Omschrijving: MALDI Standards are suitable for the validation and comparison of MALDI-ToF instruments. Certificates provide MALDI spectra including Mw, Mn and Mp values of select narrow polymers, which differ in molar mass.
UOM: 1 * 1 ST


Catalogus nummer: (47304.)
Leverancier: Merck
Omschrijving: This test mix is based on the comprehensive mix developed by Grob (Grob, et al., J. Chromatogr. 156 (1978) p. 1)
UOM: 1 * 1 ST

Catalogus nummer: (181412-10G)
Leverancier: Merck
Omschrijving: GPC Standard, Poly(butyl acrylate) solution, Mw 60000 (Typical), average Mn 20000 (Typical), Supelco®, 25 wt. % in toluene, Analytical standard
UOM: 1 * 10 g


Catalogus nummer: (47300-U)
Leverancier: Merck
Omschrijving: Nonpolar Column Test Mix, TraceCERT®, Supelco®, 500 mug/mL in dichloromethane, Certified reference material, Info VPE: ampule of 2 mL
UOM: 1 * 1 ST


Leverancier: Merck
Omschrijving: GPC Standard, Mw 50000 (typical), Supelco®

Leverancier: Merck
Omschrijving: 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.

Catalogus nummer: (81223-100MG)
Leverancier: Merck
Omschrijving: GPC Standard, ∼2010 Mw, Mw/Mn ~1,12, Supelco®
UOM: 1 * 100 mg


Catalogus nummer: (76552-1EA)
Leverancier: Merck
Omschrijving: 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.
UOM: 1 * 1 ST


Leverancier: VWR Chemicals
Omschrijving: Avantor offers an extensive range of FAME standards as Certified Reference Materials under the well-known PESTINORM® brand.
Catalogus nummer: (85659.180)
Leverancier: VWR Chemicals
Omschrijving: 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.
UOM: 1 * 100 mL

Catalogus nummer: (85678.180)
Leverancier: VWR Chemicals
Omschrijving: A secondary GC solvent reference standard for various chromatographic and analytical applications.
UOM: 1 * 100 mL

Catalogus nummer: (85675.180)
Leverancier: VWR Chemicals
Omschrijving: A secondary GC solvent reference standard for various chromatographic and analytical applications.
UOM: 1 * 100 mL

Catalogus nummer: (85674.180)
Leverancier: VWR Chemicals
Omschrijving: A secondary GC solvent reference standard for various chromatographic and analytical applications.
UOM: 1 * 100 mL

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
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