ResourceGeneral Lab

(Un)Grounded: Grounded and floating measurements and their application in electrochemical research

17 Dec 2021

In this white paper, Metrohm details of the electronic (PGSTAT) and electrochemical cell grounding are presented together with the necessity of using a floating PGSTAT for different application and experimental examples.

Autolab PGSTAT302N

Metrohm AG

This modular high current potentiostat/ galvanostat, with a compliance voltage of 30 V and a bandwidth of over 1 MHz, combined with our FRA2 module, is specially designed for electrochemical impedance spectroscopy. The PGSTAT302N is the succesor of the popular PGSTAT30. The maximum current is 2 A, the current range can be extended to 20 A with the BOOSTER20A, the current resolution is 30 fA at a current range of 10 nA. With a special modification, the PGSTAT302N also offers the possibility to perform Dynamic iR compensation.

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Autolab PGSTAT101

Metrohm AG

This is the smallest member in the Autolab range of electrochemical instruments: the Autolab PGSTAT101. In combination with the powerful NOVA software it can be used for most of the standard electrochemical techniques. The PGSTAT101 is an affordable potentiostat/galvanostat without compromising on quality and specifications, making it an ideal instrument for students and educational purposes.The small footprint allows you to place a high quality potentiostat/ galvanostat on a crowded workbench. Analog and digital inputs and outputs for interfacing and controlling Autolab accessories and external devices are available.The Autolab PGSTAT101 comes with an internal dummy cell and is 9 x 21 x 15 cm3 for 2.1 kg.A transport case is available for the PGSTAT101.

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