791 VA Detector

791 VA Detector
Part Number: 2.791.0020
Amperometric Detector for Ion Chromatography.Electrochemical (amperometric) detection with the 791 VA Detector is a very sensitive detection method used successfully in both HPLC and ion chromatography. This method is also characterized by its very high selectivity: Only easily oxidizable or reducible substances are detected - chloride or sulfate are not detected and do not interfere with the electrochemical determination, even in high concentrations.The detector can be used in series or in parallel with other detectors that are frequently used in IC or HPLC (e.g. conductivity or UV/VIS detectors).Numerous electrodes suitable for each amperometric application are available.
  • Especificações Técnicas
  • Documentos
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  • Opções
Dimensions in mm (W/H/D) 260/129/366

  • Measuring technique DC amperometry
  • Polarization potential
    range -1990...0... 1990 mV
    resolution 10 mV
    variation ±1.5%
  • Current measurement direct, non-integrating
  • Current measuring
    range 0.1 nA...10 000 µA
  • Time
    constants approx. 5.0 s for 0.1 nA
    approx. 0.1 s for 5 nA

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  • Mini reference electrode for 791
    6.0727.000
    Mini reference electrode for 791
    ELCD reference electrode

    1 piece(s)

  • Mini electrode cable / plug F - 2 mm
    6.2120.020
    Mini electrode cable / plug F - 2 mm
    1 mini socket for connection pins diameter 2 mm and 1 mini plug type F. For connection of the electrodes to IC VA Detector

    3 piece(s)

  • Seal for VA detector cell
    6.2704.010
    Seal for VA detector cell
    PTFE. Used with 656 Electrochemical Detector and 791 VA Detector

    4 piece(s)

  • Seal for VA detector cell
    6.2704.020
    Seal for VA detector cell
    Used with 656 Electrochemical Detector and 791 VA Detector

    3 piece(s)

  • Dummy Cell for VA Detector
    6.2813.020
    Dummy Cell for VA Detector
    Electrical simulation of a voltammetry cell, used for simulation and control purposes. For VA Detectors

    1 piece(s)

  • ELCD Detector cell (IC)
    6.5303.030
    ELCD Detector cell (IC)
    Complete, including built-in auxiliary Au electrode (the required 6.0727.000 reference electrode and the corresponding working electrode must be ordered separately). For VA Detector

    1 piece(s)

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  • Mini Glassy Carbon Electrode for 791
    6.0805.010
    Mini Glassy Carbon Electrode for 791
    Glassy carbon electrode
  • Silver Electrode Tip
    6.1204.130
    Silver Electrode Tip

    Metal electrode tip, silver (Ag). Electrode disk diameter 2 mm. M3 thread. Temperature range: 0 ... 40 °C.

  • Gold Electrode Tip
    6.1204.140
    Gold Electrode Tip

    Metal electrode tip, gold (Au). Electrode disk diameter 2 mm. M3 thread. Temperature range: 0 ... 40 °C.

  • Cable 771 - analog
    6.2128.170
    Cable 771 - analog
    For connecting 771 IC Compact Interface to analog output of the detector (732, 791)
  • Polishing set for solid-state electrodes
    6.2802.000
    Polishing set for solid-state electrodes
    Polishing set with 1 polishing cloth and about 2 g aluminum oxide powder (grain size 0.3 µm)