LC-MS methods are continually improving to offer better sensitivity to meet today’s demands. New grades (Methanol ULTRA plus), new solvents (n-Hexane and n-Heptane) and many other ready to use' mixes to cover all LC-MS applications.
For HPLC gradient elution, a complete range of ion-pair reagents which exhibit minimal extinction in the low UV region, and excellent transparency down to 200 nm, even at high concentrations.
A complete range of Brix/refractive index standards produced with high purity raw materials for calibrating all types of refractometers.
Complete range of colour standard solutions according to chapters 2 and 4 of the current European Pharmacopoeia. These VWR® kits are ready to use, and are dedicated to help you save time and money.
A complete range of standards according to European Pharmacopoeia (Ph. Eur.) to calibrate spectrophotometers on the control of absorbance, resolution power, stray light and wavelength accuracy.
Five new pH buffers in practical sachets giving you the right buffer value in your pocket. Ideal for the exact calibration of your pH meters!
Wide choice of sand to answer the requirements of applications such as filtration, clarification of liquids, an abrasive agent or for oxygen determination.
Two new grades in a large choice of pack sizes to meet the EU Regulation 2017/1112 on the mutual recognition of procedures for the complete denaturing of alcohol.
Volumetric one-component titrating reagents for the determination of water by the Karl Fischer method available in new 2,5 l packs.
In Karl Fischer, titer determination, calibration, validation and inspection of analytical instruments (according to ISO, GMP, GLP and FDA guidelines) and reagents are performed with a specific amount of water, either pure water or water standards.
New MA Ultra formulated specially for removing tough stains like blood, oils, proteins, fats and critical residues such as resins, tars, silicones and waxes.f
Additives are selective chemicals that are commonly added to the mobile phase or introduced post column prior to the interface to influence analyte ionisation.