The reconditioned HP 1090 liquid chromatograph is in excellent condition. Specifications:. Solvent delivery system. Configuration: Isocrat, PV5 ter- or quaternary, DR5 binary or ter-. Areas:. Pressure: 0-400 bar (0-5880 psi). Flow: 0-5000 µl/min, in 1 µl/min increments. Flow Accuracy: +2% of set point or +1 µL/min, whichever is greater, regardless of back pressure and solvents, excluding volume contraction effects. Precision: <0. 3% RSD based on retention time. Composition. Precision PV5: +0. 25% absolute, peak to peak, water/acetonitrile, 500 µl/min, 2500 µl/min. Precision PV5: +0. 15% absolute, peak to peak, water/acetonitrile, 50 µl/min, 2500 µl/min. Delay volume. PV5: 1750-2000 µl maximum, depending on back pressure. DR5: 300-500 µl maximum, depending on back pressure. Heated area. Solvent and samples are preheated in a low volume heat exchanger (2 µl) with optional cooling for subambient operation. Adjustable temperature range: 0-100°C in 0.1°C increments. Temperature control range: 20°C above ambient to 100°C. Temperature stability: +0. 5°C. Injection system. Maximum pressure: 400 bar (5880 psi). Manual injector. Rheodyne valves 7125 or 7413, with loops from 0.5 µl to 100 µl. Autoinjector. Injection volume: -25 µl (standard) or 0. 1-250 µl (optional), in 0. 1 µl increments. Precision: <1% (typically 0.6%) RSD from 2-25 µl (25 µl syringe);. <1% (typically 0.6%) RSD of 10-250 µl (250 µl syringe). Sample vial: 0 mL standard, 300 disposable microvial, 100 µL microvial. Minimum sample quantity: 40 µl (2 mL standard vial), 20 µl (300 µl disposable microvial), 5 µl (100 µl microvial). Auto-Sampler: 10 removable magazines with 10 vials each (standard or microvials), with a random access time < 10 seconds from each position. Filter photometer detector. Filter: Interference filter 254 nm standard, 210, 230, 269, 280, 340, 430 and 540 nm optional. Bandwidth: typically 10 nm. Signal characteristics. Noise: 5x 10 E-5 AU. Drift: <1 x 10 E-3 AU/hour. Signal ranges:. Linear absorbance range: -0. 1 to 1.5 AU. Response time: 100, 400 and 800 (10-90%). Flow cell. Stainless steel cell with 4.5 µl volume, 6 mm path length and a maximum pressure of 100 bar (1470 psi). Diode array detector. Up to eight signals with definable sample and reference wavelength and bandwidth. Signal characteristics. Noise: +3. 5x10E-5AU. Drift: <2 x 10 E-3 AU/hour. Signal ranges:. Wavelength range: 190 – 600 nm, in 1 nm increments. Bandwidth range: 4-400 nm, in 1 nm increments. Linear absorbance range: -0. 1 to 1.5AU. Spectral ranges:. Wavelength range: 190 – 600 nm. Linear absorbance range: -0. 1 to 1.5AU. Scan time: 10 msec from 190-600 nm. Flow cells:. Standard cell: 8 µl, 6 mm, max pressure 120 bar. High sensitivity cell: 13 µl, 10 mm, max pressure 120 bar. Selectable slots: 2, 4 and 8 nm. We are professionals Labprocure is responsible for this device.