Gas Chromatography-Mass Spectrometry (GC/MS) As It Relates To Urine Drug Testing. Gas Chromatography-Mass Spectrometry (or GC/MS) is a two-step methodology used to identify different substances within a test sample. GC/MS is widely used due to its ability to perform a specific test, and is an extremely effective in identifying the presence of a specific substance within a given sample.
(name). (email). To: (email). The Gateway Arch, 630 feet tall and another 630 feet wide, is an elegant frame to the historic city of St. Louis. A gigantic endeavor in its time, the arch is almost 100 feet taller than the Washington Monument and more than twice the height of the Statue of Liberty.
Delicate Arch. Delicate Arch is 60-foot-tall (18 m) freestanding natural arch located in Arches National Park near Moab, Utah, USA. It is the most widely recognized landmark in Arches National Park and is depicted on Utah license plates and on a postage stamp commemorating Utah's centennial anniversary of admission to the Union in 1996.