This refurbished Waters Alliance 2790 HPLC system comes with Waters 996 PDA Detector.
We have other Waters HPLC detectors as option.
- Waters 486 Tunable Detector
- Waters 2487 Dual wavelength Detector
- Waters 474 Scaning Flurecense Detector
- Waters 2996 PDA Detector
This refurbished Waters Alliance 2790 HPLC system is in great condition. It has been tested at SpectraLab Scientific. A 90 day warranty is included.
| Solvent Management | ||
|---|---|---|
| Number of Solvents: | One to four, three with vacuum degas | |
| Solvent Conditioning | Vacuum degas, three solvents plus purge solvent | |
| Typical Operating Flow Rate Range | 0.050 to 5.000 mL/min in 0.001-mL/min increments | |
| Programmable Flow Rate Range | 0.000 and 0.010 to 10.000 mL/min in 0.001-mL/min increments | |
| Compressibility Compensation | Automatic and continuous | |
| System Delay Volume | <400 µL, independent of backpressure, 1 mL/min | |
| Plunger Seal Wash | Integral, active, programmable | |
| Gradient Profiles | Eleven (11) gradient curves [including linear, step (2 curves), concave (4 curves), and convex (4 curves)] | |
| Dry Prime/Wet Prime | Automatic, front panel control | |
| Flow Ramping | Time (0.01 to 30.00 min in 0.01-min increments) to reach maximum flow rate) to reach maximum flow rate | |
| Maximum Operating Pressure Maximum Operating Pressure: | 5000 psi (345 bar) at 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 mL/min, 257 nm]) | |
| A Composition Precision | <=0.15% RSD or<=0.02 min SD, whichever is greater, based on retention time. (Degassed 60% methanol:40% water Dial-a-Mix, 1 mL/min, six replicates, phenone mix, 257 nm) | |
| Flow Precision | <=0.075% RSD or <=0.02 min SD, whichever is greater, based on retention time (N = 6) or volumetric measures (0.200 to 5.000 mL/min), isocratic premix | |
| Flow Accuracy | <=1% or 10 µL/min, whichever is greater, (0.200 to 5.000 mL/ min), degassed methanol, at 600 psi backpressure | |
| Sample Management | ||
|---|---|---|
| Number of Sample Plates | Total of four plates: – Microtiter plate – 96- or 384-well – Vial plate – 2.0-mL vial (48) – Tube plate – 0.5-mL micro-centrifuge tube (48) or 1.5-mL micro-centrifuge tube (24) – Open access plate – 2.0-mL vial (24 or 48) |
|
| Sample Temperature Control | 4 to 40° C, programmable in 1° C increments | |
| Maximum Sample Capacity | 1536 in four 384-well plates | |
| Number of Sample Injections | 1 to 99 injections per sample | |
| Sample Delivery Precision | <0.3% RSD, full loop 50 µL. (Default wash/purge conditions, degassed 60% methanol: 40% water Dial-a-Mix, 1 mL/min, six replicates, paraben mix, 257 nm) | |
| Sample Volume Linearity | >0.999% correlation, 5 to 20 µL, partial fill in 50-µL loop, 3-µL pre- and post-sample air gaps (Default wash/purge conditions, degassed 60% methanol:40% water Dial-a-Mix, 1 mL/min, six replicates, paraben mix, 257 nm) | |
| Needle Wash Solvents | Two: wash (strong solvent) and purge (sample- compatible) solvent A | |
| Sample Carryover | <0.01% or <2.5 nL (default wash/purge volumes), whichever is greater. (Blank injection, 25 µL, 60% methanol:40% water, after six replicates, 25 µL propylparaben, 1 g/L, 257 nm) | |
| Water 996 PDA detector | |
|---|---|
| Item | Specification |
| Dimensions | 11.5 x 22 inches (29×56 cm) |
| Weight | 31 lbs (14.3 kg) |
| Wavelength range | 190 to 800 nm |
| Wavelength accuracy | +1 nm |
| Linearity range | 5% at 2.0 AU, propylparaben, at 258 |
| Spectral resolution | 1.2 nm |
| Baseline noise | +1.5 x 10-5 AU peak-to-peak, dry, at 254 nm |
| Drift | 1 x 10-3 AU/hour at 254 nm (after warm-up) |
