884 Professional VA

BY
Metrohm
Metrohm

Description

884 Professional VA is the universal entry-level instrument in the Professional VA/CVS instrument series. In conjunction with the compatible measuring head and compatible electrode set, you can perform trace analysis determinations, voltammetry with the Multi-Mode Electrode pro, or determinations of organic additives in electroplating baths, with "Cyclic Voltammetric Stripping" (CVS), "Cyclic Pulse Voltammetric Stripping" (CPVS), and chronopotentiometry (CP). The proven Metrohm electrode methods combined with a completely new design of potentiostat/galvanostat and the extremely high-performance viva software open up new perspectives. The potentiostat with a certified calibrator readjusts itself automatically before each measurement, thus guaranteeing maximum precision. The replaceable measuring head enables rapid changes between various applications with different electrodes.

Key Differences

The viva software is required for control, data acquisition, and evaluation.

The 884 Professional VA is supplied with reduced accessories, without measuring head and electrodes. Electrode set and viva license are to be ordered separately.

Technical Specification

Potentiostat

  • Max. output voltage: ±25 V
  • Max. output current: ±224 mA
  • Sweep potential range: ±5 V
  • Resolution of measured current (in the smallest measuring range): 6 fA

Current measuring modes

  • DP ("Differential Pulse")
  • SQW ("Square Wave")
  • CVS ("Cyclic Voltammetric Stripping")
  • CPVS ("Cyclic Pulse Voltammetric Stripping")
  • CP (Chronopotentiometry, galvanostatic and for measuring the open-circuit potential)

Calibration techniques

  • Standard addition
  • External calibration
  • DT (Dilution Titration)
  • LAT (Linear Approximation Technique)
  • MLAT (Modified Linear Approximation Technique)
  • RC (Response Curve)

Working electrode

  • Multi-Mode Electrode pro
  • scTRACE Gold
  • Rotating disk electrodes (RDE) made of GC, "Ultra Trace" graphite, Pt, Ag, Au
  • Speeds: 100 to 3,000 rpm

Reference electrode

  • Ag/AgCl/KCl 3 mol/L

Auxiliary electrode

  • Pt
  • Glassy Carbon (GC)

Interfaces

  • Integrated USB interface
  • MSB interfaces for connecting up to four 800 Dosinos or other accessories
  • Measuring input for temperature measurement (Pt1000)
884 Professional VA

Downloads

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