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Waters’ main product brands include: ACQUITY UPLC systems, ACQUITY UPC 2 Systems, Xevo mass spectrometry systems, Synapt MS systems, Synapt HDMS systems, XTerra HPLC columns, XBridge columns, ACQUITY UPLC columns, Alliance HPLC systems, Empower chromatography and MassLynx mass spectrometry software, Oasis sample preparation products, NuGenesis lab management system (LMS).
Chromolith columns, for example, have demonstrated reproducibility of 3,300 sample injections and 50,000 column volumes of mobile phase. Also important to the life cycle of the monolith is its increased mechanical robustness; polymeric monoliths are able to withstand pH ranges from 1 to 14, can endure elevated temperatures, and do not need to ...
Chromatography columns of different types are used in both gas and liquid chromatography: Liquid chromatography: Traditional chromatography columns were made of glass. Modern columns are mostly made of borosilicate glass, acrylic glass or stainless steel. To prevent the stationary phase from leaking out of the column interior a polymer ...
Peaks that are tall, sharp, and relatively narrow indicate that separation method efficiently removed a component from a mixture; high efficiency. Efficiency is very dependent upon the HPLC column and the HPLC method used. Efficiency factor is synonymous with plate number, and the 'number of theoretical plates'.
Two different chromatographic columns are connected in sequence, and the effluent from the first system is transferred onto the second column. [1] Typically the second column has a different separation mechanism, so that bands that are poorly resolved from the first column may be completely separated in the second column.
A chemist in the 1950s using column chromatography. The Erlenmeyer receptacles are on the floor. Column chromatography in chemistry is a chromatography method used to isolate a single chemical compound from a mixture. Chromatography is able to separate substances based on differential absorption of compounds to the adsorbent; compounds move ...