| | | | Quaternary Nano, Capillary and Micro Gradient Pump |
| The UltiMate® 3000 LPG-3400M quaternary micropump allows for the accurate and precise delivery of quaternary gradients with a flow range of 50 nL/min–2.5 mL/min. Up to four solvents can be used for gradient applications. Ruggedness and reliability are ensured with an active rear-seal wash system and continuous monitoring of piston seal tightness.
The LPG-3400M micropump incorporates a low-volume, chemically inert degasser. Teflon® AF metal-free degassing membranes, with a degasser volume of 670 µL, ensure the highest degassing efficiency and the fastest degassing system equilibration times.
The UltiMate 3000 nano, cap, and micro systems use an integrated active flow splitting system: UltiFlowTM technology (patented). This innovative technology preserves a constant flow, independent of solvent composition, and column backpressures. This innovation significantly improves the reproducibility of gradients and flow accuracy as compared to passive flow splitting approaches. Pre-split gradient formation offers various advantages over splitless nanoflow gradients. Mixing is more homogeneous, and gradient delay is minimized. Even using lowest flow rates, fast changes to the gradient profiles are possible. - Wide flow rate range: 50 nL/min up to 2.5 mL/min
- Active rear-seal wash system for increased pump uptime
- Superior gradient accuracy
- Low stroke volume of 20 µL
- Biocompatible option
Performance Examples
| | | Quaternary Nano, Capillary and Micro Gradient Pump Specifications | | Operating principle | Serial dual-piston; low-pressure gradient proportioning; active flow splitting and flow control | | Flow rate range | Nano: 50–1000 nL/min
Cap: 0.5–10 µL/min
Micro: 10–160 µL/min | | Flow rate accuracy | Nano: ±3% at 300 nL/min
Cap: ±1.5% at 4 µL/min
Micro: ±1% at 50 µL/min | | Flow rate precision | <0.1% RSD | | Pressure range | 0.1–50 MPa (7250 psi) | | Proportioning accuracy | ±2% on column (typically ±1%) | | Proportioning precision | <0.5% SD on column | | No. of eluent lines | 4 | | Gradient delay volume | Effective delay volume:
Nano: 520 nL
Cap: 3.3 µL
Micro: 50 µL | | Solvent degassing | Built-in, 4-channel | | Biocompatible version | LPG-3400MB (Titanium) | | Weight | Pump: 17.9 kg (39.4 lb)
FLM: 17 kg (37.4 lb) | | Dimensions (h x w x d) | 19 x 42 x 51 cm (7.5 x 16.5 x 20 in.) | | PC connection | USB; USB hub with 3 sockets integrated | | Additional specifications | Please see data sheet |
| | Order Information | | LPG-3400M UltiMate 3000 Quaternary Low Pressure Proportioning Micro Pump | 5035.0045 | | LPG-3400MB UltiMate 3000 Biocompatible Quaternary Low-Pressure Proportioning Micro Pump | 5037.0055 | | SR-3000 UltiMate 3000 Solvent Rack without Degasser | 5035.9200 |
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|  |  | UltiMate LC Pumps | | UltiMate® 3000 Series Pump Systems offer the right choice of HPLC pump regardless of your application. |
| Modules | | | UltiMate ® 3000 LC modules achieve new levels of flexibility, performance, reliability, and ease of use. |
| LC and LC/MS Overview | Discover the UltiMate ® 3000 LCi series, and learn how LCi solutions can improve performance and productivity in your laboratory. |
| LCi Solutions |  | Find out how the UltiMate® 3000 LCi Series can provide you with LC solutions for your chromatographic challenges. |
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