Category: HPLC - Liquid Chromatography | Subcategory: HPLC System

Waters Alliance e2695 Separations Module

Waters Alliance e2695 Separations Module Image

ITEM: 23267 In Stock

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Waters Alliance e2695 Separations Module ImageWaters Alliance e2695 Separations Module Image

The Waters Alliance e2695 Separations Module provides the flexibility and ruggedness needed to accommodate an enormous range of HPLC separation challenges.

Solvent Management
- Number of solvents: One to four
- Solvent conditioning: Vacuum degas, two operating modes, four chambers, < 500 μL internal volume per chamber
- Flow rate range: 0.000 to 10.000 mL/min (0.050 to 5.000 mL/min typical) in 0.001 mL/min increments
- Compressibility compensation: Automatic and continuous
- System delay volume: < 650 μL, independent of backpressure at 1 mL/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 rate
- 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, 2.0 mL/min, 254 nm])
- 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, 1.00 mL/min, six replicates, phenone mix, 254 nm)
- 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 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 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 80 μL (degassed methanol:water 60:40 dial-a-mix, 1 mL/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%) (50 μL, N=6), sample: 100% degassed water, analytical solvent: 100% degassed methanol
- Standard sample vial: 2 mL
- Advanced operations: Priority samples, auto additions, auto standards
- Injection volume range: 0.1 to 100.0 μL, standard; 0.1 to 2000.0 μL, with optional sample loop
- Injector linearity: > 0.999 coefficient of deviation (1.000 to 100.000 μL)
- Minimum sample required: 10 μL, using low volume inserts

Specifications:
- Height: 57.1 cm (22.5 in.)
- Depth: 57.1 cm (22.5 in.)
- Width: 45.7 cm (18.0 in.)
- Weight: 45.5 kg (100.0 lbs)
- Power requirements: 950 VA (maximum)

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