This refurbished HP 1090 Series II HPLC is in excellent condition. Specifications:. Solvent delivery system. Configuration:. Isocratic, PV5 ternary or quaternary, DR5 binary or ternary. Areas:. Pressure: 0-400 bar (0-5880 psi). Flow: 0-5000 µl/min, in 1µl/min increments. Flow accuracy: +2% of set point or +1 µL/min, whichever is greater, regardless of back pressure and solvents, excluding contraction effects. Precision: <0.3% RSD, based on retention time. Composition:. Precision PV5: +0.25% absolute, peak to peak, water/acetonitrile, 500µl/min, 2500 µl/min. Precision PV5: +0.15% absolute, peak to peak, water/acetonitrile, 50µl/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 compartment:. Solvent and samples are preheated in a low volume (2µL) heat exchanger, with optional cooling for operation below room temperature. Adjustable temperature range: 0-100°C in 0.1°C increments. Regulated temperature range: 20°C above ambient temperature 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. Accuracy: <1% (typically 0.6%) RSD of 2-25 µl (25 µl syringe); . <1% (typically 0.6%) RSD of 10-250 µl (250 µl syringe). Sample vials: 0 ml standard, 300 disposable microvial, 100 µl microvial. Minimum sample volume: 40 µl (2 ml standard vial), 20 µl (300 µl disposable microvial), 5 µl (100 µl microvial). Autosampler: 10 removable magazines with 10 vials each (standard or microvials), with a random access time < 10 seconds from each position. Filter photometric detector:. Filter:. Interference: 254nm standard, 210, 230, 269, 280, 340, 430 and 540nm optional. Bandwidth: typically 10 nm. Signal characteristics:. Noise: 5x 10 E-5 AU. Drift: <1 x 10 E-3 AU/hour. Signal ranges:. Linear absorption range: -0.1 to 1.5 AU. Response time: 100, 400 and 800 (10-90%). Flow cell:. Stainless steel cell with a volume of 4.5 µl, a path length of 6 mm 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 features:. Noise: +3.5 x 10 E-5 AU. 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 absorption range: -0.1 to 1.5 AU. Spectral ranges:. Wavelength range: 190 - 600 nm. Linear absorption range: -0.1 to 1.5 AU. 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. Column: 2, 4 and 8 nm selectable. Several available Labprocure is responsible for this device.