Isojackets are external heating units that surround a pipe or tube to provide even and consistent heating.
A chromatograph separates the chemical components of a mixture. The substance moves through a column in either liquid or gas phase, and the components are separated by their affinity within the column. Gas-absorption chromatography was developed in the late 1940s, and by the mid-1960s commercial gas chromatographs dominated all forms of chromatography.
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