{"id":38083,"date":"2024-02-06T00:08:28","date_gmt":"2024-02-06T00:08:28","guid":{"rendered":"https:\/\/www.alicat.com\/?post_type=article&p=38083"},"modified":"2026-02-16T20:55:53","modified_gmt":"2026-02-16T20:55:53","slug":"uberprufung-und-optimierung-von-gaschromatographieprozessen","status":"publish","type":"support","link":"https:\/\/www.alicat.com\/de\/support\/verifying-and-optimizing-gas-chromatography-processes\/","title":{"rendered":"\u00dcberpr\u00fcfung und Optimierung von Gaschromatographie-Prozessen"},"content":{"rendered":"\n[et_pb_section fb_built=”1″ _builder_version=”4.23.1″ _module_preset=”default” custom_padding=”|0px|3px|0px|false|false” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_row _builder_version=”4.23.1″ _module_preset=”default” custom_padding=”3px|||||” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”]
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Verifying and optimizing gas chromatography processes<\/strong><\/h1>\n
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Gas chromatography (GC) is an important analytical technique used to separate and analyze chemical components in a mixture. Here, we provide a brief introduction to GC and discuss some of the common application challenges and mass flow\/pressure solutions.<\/p>\n

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How does gas chromatography work?<\/h2>\n

The sample is first injected into the inlet of the GC, where a steady flow of an inert \u201ccarrier gas\u201d is used to move it through a packed column. As the sample passes through the column, the various components interact with the column material. Each component elutes at a different rate, depending on how strongly it interacts with the column.\u00a0The outlet of the column feeds directly into a detector that characterizes the eluted compounds based on column retention time and signal strength. Eventually, the sample and carrier gas are vented out as waste.<\/p>\n

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Constant carrier gas flow<\/h2>\n

It is critical that the GC outputs accurate, repeatable results to ensure differences between two sample injections are only\u00a0<\/em>due to differences in chemical<\/p>\n

composition. It is therefore imperative to keep the flow rate of the carrier gas constant, as deviations disrupt the detection of chemical compounds.<\/p>\n<\/div>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”3_5,2_5″ _builder_version=”4.23.1″ _module_preset=”default” custom_padding=”3px|||||” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”3_5″ _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”]

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BASIS\u2122 controllers are fast, accurate, and small mass flow controllers<\/a> from Alicat Scientific that are commonly used to deliver exacting inert gas flows. They provide the following benefits to GC applications:\u00a0<\/span><\/p>\n