HP 6890 GC NPD

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HP 6890 GC NPD

Reconditioned Hewlett Packard 6890 GC

Hewlett Packard Agilent Technologies - Model 6890 Plus Gas Chromatograph Mainframe
Agilent Technologies - Model G1560A Split/Splitless Inlets with EPC
Agilent Technologies - Model G1575A Nitrogen Phosphorus Detector (NPD)

Hewlett Packard 6890 Nitrogen Phosphorus Detector GC complete with 7673C Autosampler.

Hewlett Packard - 6890 Autosampler Mounting Bracket for a 7673C Autosampler
Hewlett Packard - Model G1512A Autosampler Control Module
Single Hewlett Packard - Model G1513A Autosampler Injector - (7673C Tower for the 6890 GC)
Hewlett Packard - 7673C Tray (18596C)

Our used HP 6890 GC Systems also include the following Agilent 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.

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Analytical Instrument Management offers quality custom configured, refurbished HP and HP 6890 Gas Chromatograph Systems. All of our 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.

HP GC systems are known for their reliability, ruggedness, and long life. The HP 6890 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.

HP 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 HP 6890 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.

Click on the links below to download manuals and other information for the HP 6890 GC

HP 6890 Site Preparation and Installation Manual

HP Technologies 6890 Series Gas Chromatograph Service Manual

HP NPD Nitrogen-Phosphorus Detector on 6890 GC Manual

HP Split/Splitless Inlet, Electronic Pneumatics Control on 6890 GC

HP 7673C Operation Manual

HP ChemStation for GC, LC, LC/MSD, CE, and A/D Systems