Gas Chromatography
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Gas chromatographs can be found in labs all over the world. They are designed to identify compounds based on the measured speed each takes to reach the detector. All gas chromatographs require stable flow control to ensure valid measurement and Identification. In this drawing, precise pressure is controlled to a known and fixed orifice. If pressure remains stable to the orifice, flow remains stable throughout the process. The compound sample is injected into the injector valve and then flows through the column while being heated. This process requires excellent resolution and accuracy to ensure stable flow.
Related Content
- White Paper: Resolution in Proportional Control
- White Paper: Digital vs. Analog Control in Proportional Applications
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- Cordis Pressure Controls FAQ
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