| Solvent Management | |
| Number of Solvents | 1 to 4 |
| Solvent conditioning | Vacuum degas, two operating modes, four chambers, < 500µl internal volume per chamber 0.000 to 10.000 mL/min (0.050 to 5.00 mL/min typical) in 0.001 mL/min increments |
| Compressibility compensation | Automatic and continuous |
| System delay volume | < 650 µL, independent of backpressure at 1mL/min |
| Plunger seal wash | Integral, active, programmable |
| Gradient profiles | 11 gradient curves including linear, step (2), concave (4), and convex (4) |
| Dry prime/wet prime | Automatic front panel control, SystemPrep function for automatic solvent(s) purge |
| Flow ramping | Time (0.01 to 30.00 min in 0.01 min increments) to reach maximum flow rates |
| Maximum operating pressure | 5000 psi (345 bar) (0.010 to 3.000 mL/min) programmable upper and lower limits |
| Composition range | 0.0% to 100.0%, in 0.1% increments |
| Composition accuracy | ±0.5% absolute, independent of backpressure (proportioning valve pair test, [degassed methanol: methanol/propylparaben, 2.0mL/min, 254nm]) |
| Composition precision | ≤0.15% RSD or ≤0.02 min SD, whichever is greater, based on retention time (degassed methanol: water 60:40 dial-a-mix, 1.00mL/min, six replicates, phenone mix, 254nm) |
| Flow precision | ≤0.075% RSD or ≤0.02 min SD, six replicates, based on retention time or volumetric measures (0.200 to 5.000 mL/min), isocratic premix |
| Flow rate range | 0.000 to 10.000 mL/min (0.050 to 5.000 mL/min typical) in 0.001mL/min increments |
| Flow accuracy | ±1% or 10µl/min whichever is greater, 0.200 to 5.000 mL/min (degassed methanol, at 600 psi backpressure) |
| Sample Management | |
| Number of sample vials | 120 vials, configured in five carousels of 24 vials each |
| Number of sample injections | 1 to 99 injections per sample vial |
| Sample delivery precision | Typically <0.5% RSD, 5 to 80µl (degassed methanol: water 60:40 dial-a-mix, 1mL/min, six replicates, phenone mix, 254 nm) |
| Sample carryover | ≤ 0.01% for caffeine, under specified conditions |
| Injection needle wash | Integral, active, programmable |
| Injection accuracy | ± 1µL (±2%) (50µL, N=6), sample: 100% degassed water, analytical solvent: 100% degassed methanol |
| Standard sample vial | 2mL |
| Advanced operations | Priority samples, auto additions, auto standards |
| Injection volume range | 0.1 to 100.0µL, standard; 0.1 to 2000.0µL, with optional sample loop |
| Injection linearity | > 0.999 coefficient of deviation (1.000 to 100.000µL) |
| Minimum sample required | 10µL, using low volume inserts |
| Sample temperature control (optional) | 4 to 40°C, programmable in 1°C increments |
| Column heater(optional) | 20 to 65°C, in 1°C increments (5°C above ambient) |
| Column heater/cooler (optional) | Ambient minus 15°C or 4°C (whichever is greatest) up to 65°C, in 1°C increments |
This refurbished Waters Alliance 2695 HPLC system with Waters 2420 ELS Detector, or Waters 2996 PDA Detector, or Waters 2414 RID, or Waters 2475 Multi-Wavelength Fluorescence Detector, or Waters 2489 UV/Vis Detector, or Waters 2465 Electrochemical Detector are all in great condition. it have been tested at SpectraLab.
A 90 day warranty is included.
We are professionals. We encourage you to contact us to speak with one of our expert and professional team. Thanks for looking and we look forward to hearing from you!
