Solid-Phase microextraction for flavor analysis in Harari Khat

The results can be seen in Figs. 5–9. As the blanking clearance increased (as trials S1, S2, and S3), the displacement of the punch increased non-linearly (0.235, 0.262, and 0.296), and the maximum stamping pressure decreased (2.04, 2.01, and 1.96). The fluctuation range is about 0.009. ................
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