<p>Gas chromatography (GC) is&nbsp;<mark class="HxTRcb" data-processed="true">an analytical technique used to separate, identify, and quantify volatile compounds in a mixture by passing a gas through a column</mark>. A carrier gas moves the vaporized sample through a stationary phase within a column, and different compounds separate based on their boiling points and affinities. GC is widely used in industries such as pharmaceuticals, environmental monitoring, and food and beverage to test purity and analyze mixtures.<span class="uJ19be notranslate" data-wiz-uids="msfVXe_k,msfVXe_l" data-processed="true"><span class="vKEkVd" data-animation-atomic="" data-processed="true">&nbsp;</span></span></p><br/><div class="otQkpb" role="heading" aria-level="3" data-sfc-cp="" data-processed="true"><strong>Applications:</strong></div><br/><ul class="KsbFXc U6u95" data-processed="true"><br/><li data-hveid="CAUQBA" data-processed="true"><span class="T286Pc" data-sfc-cp="" data-processed="true"><strong class="Yjhzub" data-processed="true">Petroleum,&nbsp; gas and chemical industries</strong>: Analyzing and refining petroleum products and polymers.</span><span class="uJ19be notranslate" data-wiz-uids="msfVXe_1x,msfVXe_1y" data-processed="true"><span class="vKEkVd" data-animation-atomic="" data-processed="true">&nbsp;</span></span></li><br/><li data-hveid="CAUQAA" data-processed="true"><span class="T286Pc" data-sfc-cp="" data-processed="true"><strong class="Yjhzub" data-processed="true">Pharmaceuticals</strong>: Analyzing drug purity and identifying impurities.</span></li><br/><li data-hveid="CAUQAQ" data-processed="true"><span class="T286Pc" data-sfc-cp="" data-processed="true"><strong class="Yjhzub" data-processed="true">Environmental monitoring</strong>: Detecting pollutants like pesticides in air and water samples.</span></li><br/><li data-hveid="CAUQAg" data-processed="true"><span class="T286Pc" data-sfc-cp="" data-processed="true"><strong class="Yjhzub" data-processed="true">Food and beverage</strong>: Testing for quality, flavors, and contaminants in products like edible oils and alcoholic beverages.</span></li><br/><li data-hveid="CAUQAw" data-processed="true"><span class="T286Pc" data-sfc-cp="" data-processed="true"><strong class="Yjhzub" data-processed="true">Forensics and research</strong>: Identifying unknown substances and compounds.</span></li><br/></ul>