Table 2. List of microchannel design parameters for the 2PP-3D printed liquid sample injection devices with an indication of required liquid flow rates (in µl min−1) for stable operation and compatible pulse operation modes (intra-train pulse repetition rates).
The denoted parameters for GDVNs describe the liquid orifice diameter D liquid, the gas orifice diameter D gas and the distance between these two orifices H liquid-gas. Mixing devices are further described by the diameter of the mixing channel D channel, the diameter of the main channel (sample inlet) D MC, the diameter of the side channel (reactant inlet) at the mixing initiation region D SC and the mixing channel length L channel. HVEs and CCTs for electrospray purposes are further described with their wall thickness at the tip z wall and the angle of the cone. This list and the referenced designs can be found online in our corresponding GitHub repository, https://github.com/flmiot/EuXFEL-designs.
| Device type | Design parameters | Q liquid (µl min−1) | Pulse mode | Design name |
|---|---|---|---|---|
| GDVN | D liquid–D gas–H liquid-gas (µm) | |||
| 30–30–30 | ≥5 | ≤2.3 MHz | JKMH_5†, MVED_F | |
| 50–60–60 | ≥8 | ≤2.3 MHz | JKMH_6† | |
| 75–60–75 | ≥8 | ≤1.1 MHz | MVED_B | |
| 100–90–100 | ≥10 | ≤0.5 MHz | MVED_C | |
| 150–100–150 | ≥75 | ≤0.14 MHz | MVED_D | |
| 180–145–180 | ≥100 | ≤0.14 MHz | MVED_E | |
| Micromixer | D channel–D MC–D SC–L channel (µm) | |||
| 100–75–180–300 | ≥10 | Depends on GDVN | MVED_Y‡ | |
| 200–100–231.7–300 | ≥10 | MVED_Z‡ | ||
| 200– (200/2)–(200/2)–950 | ≥10 | JKMH_10† § | ||
| 100–(100/2)–(100/2)–950 | ≥10 | JKMH_10H† § | ||
| Mixing-GDVN | D channel–D MC–D SC–L channel–D liquid–D gas–H liquid-gas (µm) | |||
| 100–75–180–2122.3–75–60–75 | ≥10 | ≤1.1 MHz | MVED_S | |
| 100–75–180–331.8–75–60–75 | ≥10 | ≤1.1 MHz | MVED_V | |
| DFFN | 100–75–96–445.6–75–70–70 | ≥5 + ≥15 (EtOH) | ≤1.1 MHz | JKMH_8† |
| HVE | D liquid–D gas–H liquid-gas–z wall–α (µm, °) | |||
| 50–365–600–20–9 | ≥0.3 | 10 Hz | MV_K | |
| 75–365–600–20–9 | ≥0.3 | 10 Hz | MV_L | |
| 100–365–600–20–9 | ≥0.3 | 10 Hz | MV_T | |
| Mixing-HVE | D channel–D MC–D SC–L channel–D liquid–D gas–H liquid-gas–z wall–α (µm, °) | |||
| 231.7–100–231.7–2570–100–345–600–20–9 | 0.3–3 | 10 Hz | MV_I | |
| 231.7–100–231.7–2570–75–345–600–32.5–9 | 0.3–3 | 10 Hz | MV_J | |
| CCT | D channel–L channel–z wall–α (µm, °) | |||
| 40–200–50–30 | 0.02–0.8 | ≤4.5 MHz | MV_W | |
| 10–200–10–20 | 0.02–0.8 | ≤4.5 MHz | MV_X | |
These designs were previously discussed elsewhere (Knoška et al., 2020 ▸).
Concentric cones.
Kenics.