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Waters Alliance 2695 HPLC system with Waters 2487 Dual Absorbance UV/Vis Detector

Waters Alliance 2695 HPLC system with Waters 2487 Dual Absorbance UV/Vis Detector
Waters Alliance 2695 HPLC system with Waters 2487 Dual Absorbance UV/Vis Detector
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 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 500 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/proplyparaben, 2.0 mL/min, 254nm])
Composition precision <0.15% 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, which is greater, 0.200 to 5.000 mL/min,

Sample management


Number of samples 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%)(50µL, 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 µL, standard; 0.1 to 2000 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

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 to 4°C (whichever is greatest) up to 65°C, in 1°C increments

Waters 2487 Dual Absorbance UV/Vis Detector
Wavelength range
190 to 700 nm
<5 nm
Wavelength accuracy
+1.0 nm
Wavelength repeatability
+0.1 nm
Single λ dry noise
<5 µAU
(at 230 nm, 1 –second digital filter, 30-second segments, 10-Hz data rate, analytical cell)
Wet noise
<8 µAU
(at 230 nm, 1-second digital filter 30-second segments, 10-Hz data rate, analytical cell)
Dual channel noise (dry)
<35 µAU
(measured at 230 nm, running at 230 to 280 nm with 2-second filter at 1-Hz data rate; dry, analytical cell)
Dual channel noise (wet)
<45 µAU
(measured at 230 nm, running at 230 to 280 nm with 2-second filter at 1-Hz data rate; 1 ml/min, flow of acetonitrile, analytical cell)
<5% at 2.5 AU, propylparaben at 257 nm
1.0 x 10-4 AU/hr. max (∆T = +2°C/hr.)
Thermal drift
1.0 x 10-4 AU/°C max (∆T = +2°C/hr.)
Sensitivity setting range
0.0001 to 4.0000 AUFS
Filter setting range
Single-wavelength: 0.1 to 5.0 seconds
Dual-wavelength: 1 to 50 seconds
To 5.0-second Hamming filter
Digital data rates
1,2,5,10,20,40,80 Hz (single channel)
1,2 Hz (dual channel)
Analog output data rates (single λ mode)
10,20,40,80 Hz (channel A)
10 Hz only (channel B)
Lamp source
30-W High Brightness Deuterium lamp, 0.5 nm aperture, pre-aligned 2000 silicon photodiodes (matched pair)
Second-order filter
Automatic for wavelengths > 370 nm
Wavelength calibration filter
Erbium filter, used at startup or on demand
Flow cell
TaperSlit flow cell design
Nitrogen purge
Purge fitting present on optics bench
Path length
10 mm (standard analytical)
Cell volume
10 µL (standard analytical)
Pressure limit
6895 kPa (69 bar,1000 psi)
316 stainless steel, fused silica, Tygon
Operating temperature
4 to 40 °C (39 to 104 °F)
Operating humidity
20% to <95%, noncondensing
Shipping and storage
-30 to +60 °C
Shipping and storage humidity
0% to <95% noncondensing

This refurbished Waters Alliance 2695 HPLC system comes with a NEW IN BOX Waters 2487 Dual Absorbance UV/Vis Detector. They are in a great condition.

A 90 days warranty is include.

We have special expertise on analytical equipment. We encourage you to contact us to speak with one of our expert and professional team members.

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