Flow, Pressure, and Temperature Calibration: Part II

In last month’s installment of “GC Connections,” John Hinshaw discussed how peak retention times depend upon relationships between pre s s u re, flow rate, oven temperature , column dimensions, and stationary phase. This concluding installment of a two-part series discusses the effects that column variability has o­n isothermal capillary gas c h romatography and e x p l o res instrument calibration with the goal of maximizing instrument-toinstrument similarity of retention times.

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