What is the function of system suitability in HPLC?

Some points on function of system suitability in HPLC are:

• System suitability testing evaluates column backpressure to confirm unobstructed solvent flow through the system.
• It verifies temperature control accuracy by confirming stable column oven conditions during equilibration.
• System suitability checks detector linearity by ensuring proportional response over repeated injections of the suitability solution.

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