How do you develop and validate a process GC method for a new application?

Process GC method development: define requirements (components, concentration ranges, accuracy, cycle time), select column and detector (based on sample characteristics), optimize temperature program and carrier flow (balance resolution and speed), develop calibration strategy (single or multi-point, calibration frequency), validate method (linearity, precision, accuracy vs reference, detection limits), test with actual process samples (matrix effects, interferences), configure for process operation (stream switching, automatic validation), and document method parameters. Transfer to production: operator training, maintenance procedures, and spare parts identification. Ongoing validation: QC samples, correlation with lab, and control charts for performance monitoring.