Agilent 6890N FID NPD GC
Agilent Technologies - Model 6890N Gas Chromatograph Mainframe
Dual Agilent Technologies - Model G1560A Split/Splitless Inlets with EPC
Agilent Technologies - 6890 opt. 211 Flame Ionization Detector (FID)
Agilent Technologies - Model G1575A Nitrogen Phosphorus Detector (NPD)
Used Agilent 6890N FID NPD Gas Chromatography System comes complete with 7683 Autosampler
Agilent Technologies - Model 7683 ALS Automatic Liquid Sampler Autoinjector (G2613A)
Agilent Technologies - Model 7683 ALS Automatic Liquid Sampler Tray (G2614A)
Our reconditioned 6890N GC Systems include the following Agilent GC Chemstation Data System
Computer - Intel Pentium Dual-core 3 MB Cache G20303 GHz Processor, 24X DVD Burner, SATA Dual WD Caviar Blue 500GB Internal SATA Hard Drive, 2GBRAM - Brand New
Agilent Technologies - Part No. 82350A - PCA/PCIGPIB Card
Microsoft - Windows XP License
Agilent Technologies - G2070AA ChemStation
Monitor - 19 inch Flat Panel Display 1280 x 1024 (NEW)
Other options are available upon request including: additional injection port and autosampler tower.
Our website is intended to be a catalog of system configurations based on our common inventory items. We can custom configure any system to meet your specific requirements.
Analytical Instrument Management offers quality custom configured, refurbished Agilent and HP 6890 Gas Chromatograph Systems. All of our Agilent 6890 GC systems are completely refurbished, rigorously tested and guaranteed to meet manufactures specifications. Our customers are supplied with a comprehensive data report detailing the instrument performance prior to shipping.
Agilent GC systems are known for their reliability, ruggedness, and long life. The Agilent 6890N is a state-of-the art gas chromatograph that provides superior performance for all applications. Key to its performance is the use of advanced electronic pneumatic control (EPC) modules and high performance temperature control. Each EPC unit is optimized for its intended use with a specific inlet and detector option. Temperature control of the 6890 oven allows for fast and precise temperature ramping. Overall thermal performance provides optimal chromatography including peak symmetry, retention time repeatability, and retention index accuracy. The combination of precise pneumatic control and accurate temperature control leads to outstanding retention time repeatability, the basis for all chromatographic measurement.
Agilent 6890 Flame Ionization Detector (FID)
• Designed for maximum sensitivity and ease of use, the most popular and versatile detector
• Flame that can be ignited from keyboard or automatically
• Full digital linear dynamic range (107) in a single run
The operation of the Agilent 6890N FID is based on the detection of ions formed during combustion of organic compounds in a hydrogen flame. The generation of these ions is proportional to the concentration of organic species in the sample gas stream. Hydrocarbons generally have molar response factors that are equal to number of carbon atoms in their molecule, while oxygenates and other species that contain heteroatoms tend to have a lower response factor. Carbon monoxide and carbon dioxide are not detectable by FID.
Agilent Nitrogen Phosphorous Detector (NPD)
• Optimized selectivity and sensitivity for nitrogen- and phosphorus-containing compounds
• NPD with Blos bead offers robust operation, better stability and longer bead lifetime
• Bead is digitally set from the keyboard and is auto-correcting
The Agilent 6890 GC nitrogen–phosphorus detector (NPD) is a type of detector commonly used with gas chromatography, in which thermal energy is used to ionize an analyte. With this method, nitrogen and phosphorus can be selectively detected with a sensitivity that is 104 times greater than that for carbon. NP-Mode: A concentration of hydrogen gas is used such that it is just below the minimum required for ignition. A rubidium or cesium bead, which is mounted over the nozzle, ignites the hydrogen (by acting catalytically), and forms a cold plasma. Excitation of the alkali metal results in ejection of electrons, which in turn are detected as a current flow between an anode and cathode in the chamber. As nitrogen or phosphorus analytes exit the column, they cause a reduction in the work function of the metal bead, resulting in an increase in current. Since the alkali metal bead is consumed over time, it must be replaced regularly.