Laboratory Equipment Supplier: Analytical and Lab Brands (31)

Send the part numbers you use now, or the column description: phase, length, inner diameter and particle size. For filters, vials and other consumables the catalog number and pack size are enough. We check availability with the manufacturer and can combine consumables with instrument parts in one shipment. If a column is discontinued, we suggest the closest equivalent phase from the same or another maker.

The sample decides. Gas chromatography needs compounds that evaporate without breaking down: solvents, fuels, residual monomers, many flavors and fragrances. Liquid chromatography handles non-volatile and heat-sensitive molecules such as drugs, peptides and most pharmaceutical impurities. Coupling either one to a mass spectrometer adds identification. Send us the analytes and the matrix, and we suggest the instrument class before sourcing it.

LC-MS couples liquid chromatography, which separates the mixture, with a mass spectrometer, which detects each compound by its mass. A lab needs it when retention time alone is not enough: trace impurities, metabolites, residues in food or environmental samples, peptides. Systems range from single quadrupole instruments for routine confirmation to tandem and high-resolution instruments for quantitation and unknowns.

Start with compatibility. If the lab already runs one manufacturer's chromatography data system, staying with that maker usually saves revalidation and retraining. For a new lab, compare method transfer from your reference methods, the price of consumables over several years and local service. We can prepare a side-by-side of two or three configurations for the same method.