884 Professional VA semiautomated for MME

Description

Metrohm

884 Professional VA semi-automated for MME is a convenient high-end routine analyzer for trace determinations with voltammetry and polarography with the Multi-Mode Electrode pro or the scTRACE Gold. The proven Metrohm electrode methods in combination with a completely new design of potentiostat/galvanostat and the extremely high-performance viva software opens up new perspectives for the determination of heavy metals. The potentiostat with a certified calibrator readjusts itself automatically before each measurement, thus guaranteeing maximum precision.

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Key Differences

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Determinations with rotating disc electrodes can also be performed with the instrument, e.g. determinations of organic additives in electroplating baths with "Cyclic Voltammetric Stripping" (CVS), "Cyclic Pulse Voltammetric Stripping" (CPVS), and chronopotentiometry (CP). The replaceable measuring head enables rapid changes between various applications with different electrodes.

Two 800 Dosinos (supplied) permit the automatic addition of auxiliary solutions during the determination, e.g., electrolyte, buffer or standard solutions.

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

The 884 Professional VA semi-automated for MME is supplied with extensive accessories and a measuring head for the Multi-Mode Electrode pro. Electrode set and viva license need to be ordered separately.

Technical Specification

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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