Voltammetry systems for determination of additives in electroplating baths are compact, have low running costs and very reasonable priced, with sensitivity similar to atomic absorption.

Metrohm's Voltammetry (VA) systems are compact, have low running costs and very reasonable priced, with the same or better sensitivity than atomic absorption or ICP. * Determination of additives in electroplating baths - Cyclic Voltammetric Stripping Analysis (CVS) and Cyclic Pulse Stripping Analysis (CPVS) are widespread methods used in the electroplating industry for the determination of organic additives in electroplating baths. For many technical coatings, particularly in PCB manufacture in the electronics industry, this method forms an essential part of the production control process especially for acid copper baths and tin-lead baths.

The quantitative determination of the additives is carried out utilizing their influence on the decomposition of the main component of the electroplating bath.

As measurements correspond to a process which is similar to the production process, the activity of the additives and the effectiveness of the electroplating process are measured directly.

Quantification of the various types of additives requires special calibration techniques; these are all implemented by our new 797 VA Computrace.

Brighteners are determined by using the Linear Approximation Technique (LAT) or the Modified Linear Approximation Technique (MLAT).

Dilution Titration (DT) is used for the determination of Suppressors.

With CVS or CPVS the concentration of the additives can be determined exactly.

The effective concentration of the particular additive in the bath sample is shown directly on the printout in ml additive per litre of bath.

The means that topping up to achieve the set concentrations can be carried out very exactly.guaranteeing continuous interference free operation.