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.
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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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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Pre-prepared polystyrene kits, EasiCal™
Supplier: VARIAN
The EasiCal system for organic solvents consists of two different combs, each with ten detachable spatulas supporting a mixture of five polymer standards with MWs selected to provide equidistant calibration points for greater accuracy.
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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.
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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.
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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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Polystyrene, analytical standards for GPC
Supplier: Merck
GPC Standard, Mw 2000000 (typical), Supelco®
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GC/MS analyser kit standards
Supplier: AGILENT HEWLETT PACKARD
Standard for GC-MS, Tricaprin internal standard #2 for biodiesel
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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(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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Polystyrene standards, GPC/SEC columns calibration
Supplier: VARIAN
Polystyrene standards for many organic solvents either for conventional GPC column calibration or for calibrating light scattering and viscosity detectors that provide equidistant calibration points for greater accuracy.
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Polymethylmethacrylate standards, GPC/SEC columns calibration
Supplier: VARIAN
Polymethylmethacrylate (PMMA) standards are extremely versatile as they can be used for organic GPC with a wide range of medium polarity eluents, such as tetrahydrofuran, toluene, methyl ethyl ketone and ethyl acetate.
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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(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 (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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Positive electrophoretic mobility standard, NIST-1980
Supplier: PROMOCHEM
This Standard Reference Material (SRM) is intended for use in the evaluation of equipment, and the validation of methodology used to measure electrophoretic mobility.
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Polystyrene film - IR transmission wavelength standards, NIST-1921B
Supplier: PROMOCHEM
NIST-1921B, Polystyrene film - IR transmission wavelength