Specifications:. Heated devices:. Five standard heating zones: two detectors, two inputs, one auxiliary zone. Stored Methods: Two. Capillary split/splitless. Range up to 400°C in 1°C increments. Back pressure design allows independent adjustment of split flow rate without impacting column flow. Built-in septum flush at 3 ml/min. Accepts columns up to 1.2mm outside diameter. Multimode design includes split and splitless injection. Splitless flushing time variable in 0.01 minute increments. Flame ionization detector (FID). Range up to 450°C. Grounded burner and current limiting design for operator safety. Push button flame ignition. Sensitivity: . - 18 mCoul/gm Carbon: Nitrogen carrier, 0.018 inch ID nozzle. - 15 mCoul/gm Carbon: Helium carrier, 0.018 inch inner diameter nozzle. - 22 mCoul/gm Carbon: Nitrogen carrier, 0.018 inch inner diameter capillary nozzle. - 18 mCoul/gm Carbon: Helium carrier, 0.018 inch inner diameter capillary nozzle. Minimum detectability: 5 pg carbon/second, nitrogen carrier at S/N=2. Linear dynamic range: +/- 10% over a range of 10? with 0.018 inch inner diameter nozzle. Conditions: Column flow 50 ml/min, 45 ml/min H2, 650 ml/min air, sample sample. Thermal conductivity detector (TCD). Range up to 400°C. Single-filament design (single column) has smooth switching of reference and analysis carrier flows. Minimum detectability: 400 pg/ml carrier - equivalent to 1 ppm neon in 1 ml air. Linear dynamic range: +/- 5% over a range of 10?. Digital gain setting can be time-programmed via the keyboard. Conditions: detector 100°C, 45 ml/min switching flow and 30 ml/min analytical flow of helium, propane sample. Flame Photometric Detector (FPD). Range up to 300°C. Capillary columns with an inner diameter of 100 to 530 µm fit through the transfer line to the base of the flame. Two combustion modes: air/hydrogen or oxygen/hydrogen. Display detector signal to see when the flame is lit. Push button flame ignition. Sulfur mode: sensitivity to 20 pg S/second, range 10³, selectivity 10? g S/g C. Phosphor mode: sensitivity to 0.9 pg P/second, range 10?, selectivity 10? g P/g C. Column oven. Operating range: 4°C above room temperature to 450°C. Temperature setting: 1°C for temperatures, 0.1°C for programming speeds. Programming: Rates from 0.1 to 70°C per minute, maximum 650 minute run time, three ramps with start/end hold steps. This refurbished HP 5890 II GC with a single FID & TCD, single split input & packed input is in excellent condition. Several available Labprocure is responsible for this device.