Choosing the right column is key in Gas Chromatography Gas Chromatography (GC) is the most widely used method for separating and analyzing a wide variety of organic compounds and gases. There have been many recent advancements in both packed column and capillary column GC. With numerous options and considerations, selecting the right column can be complicated. This resource provides essential guidance for scientists and technicians, including: Methods of choosing both capillary and packed columns Selection of dimensions (column length, I.D., film thickness, etc.) and type of column Guidelines for proper connections of the column to the injector and detector United States Pharmacopeia and National Formulary chromatographic methods ASTM, EPA, NIOSH, and OSHA column selection specifications Information on the advantages of computer assistance in GC and multidimensional GC Comprehensive information on column oven temperature control Columns for Gas Chromatography: Performance and Selection is a hands-on reference for scientists and technicians using GC.
The founding of the U.S. National Student Association (NSA) in September of 1947 was shaped by the immediate concerns and worldview of the "GI Bill Generation" of American Students, returning from a world at war to build a world at peace. The more than 90 living authors of this book, all of whom are of that generation, tell about NSA's formation and first five years. The book also provides a prologue reaching back into the 1930s and an epilogue going forward to the sixties and beyond.
From his start as a West Point graduate, class of 1848, to his retirement as a brigadier general more than 40 years later, John C. Tidball saw much that shaped the United States and its army. This text tells the man's story.
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