Additional Supporting Information may be found in the online version of this article.


Figure 13. Calibration curve of the UV-VIS flow cell for Pelikan Blue Ink. The absorbance is measured at 306 nm.

Figure 14. The inlet pulse was measured for different combinations of the ink pulse flow rate and ink pulse volume. Duplicate measurements were performed. These are indicated by the black line and the red dot, to enhance the visibility of the difference. Measurements for 200µL s-1 and 200 µL pulse volume gave the best reproducibility.

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