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Amersham Biosciences A-900 AKTA Autosampler P/N 18-1144-61 w/ Cooling**This instrument was tested as far as we could. Unit powers on but beeps continuously. Unit has slight wear from normal use. (Does NOT include software). See photos for details.Autosampler A-900 allows automatic and accurate sample injection by using a novel method of reproducible sample withdrawal of sample volumes from 0.1ul up to 1 ml. This A-900 Autosampler P/N 18-1144-61 is equipped with peltier cooling. The autosampler is designed to allow use of a variety of vials and septa and sample loss is insignificant due to the novel sample withdrawal method. The A-900 is controlled simply and directly by UNICORN as an integral part of AKTAexplorer, AKTApurifier, AKTA FPLC or AKTAmicrosystems.Reliable and easy to useExcellent reproducibility from each sample injection methodsSimple programming using UNICORN control softwareFlexibleMultiple choice of sample injection methods and volumes, as well as a variety of vials and septaDesigned to minimize contaminationSeparate needles for sample and puncturing of septaBuffer tubing between syringe and injection valves eliminates contaminationManufacturer's Specifications:Sample capacityStandard tray96 vials of 1.5, 12 vials per segmentMicrovial tray:160 vials of 0.5ml, 20 vials per segmentLoop volume5-1000ulDispenser syringe100 ul, 250 ul standard, 500 ul, or 1000 ul syringeVial detectionMissing vial detection by vial sensorHeadspace pressureBuilt in compressorInjection valve switching time<100 msPiercing precision needle+/- 0.6mmWash solvent250 ml internal wash solvent bottleAdditional Prep Fees May Apply