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Vacuum pumps are an essential piece of equipment and are used in a wide variety of processes in most laboratories. Over the past 25 years, it has become apparent that vendors have made significant innovative improvements to vacuum pumps, with important developments in high vacuum technology, corrosion resistance, vacuum control, and improvements in the efficiency and ecological impact of vacuum pumps.

Chromatography data systems (CDSs)— the data “back end” for gas, liquid, ion, and supercritical fluid analytical chromatography—have evolved over the decades from simple chart recorders to onboard processors with minimal storage and analysis to personal computerbased and, finally, to connectivity with “peer” instruments and supervisory software systems.











