The Start of a New Generation in AAS

High-Resolution Continuum Source AAS from Analytik Jena AG represents previously unattained effectiveness and quality of measurement results.

The series comprises two instruments: contrAA® 300, the high-resolution continuum source AAS for flame and hydride technology; and contrAA® 700, a compact, versatile system for flame, hydride and graphite furnace technology, capable of analysing liquid as well as solid samples in one single instrument.

Both systems combine intelligent design with premium functionality and persuasive performance characteristics including: just one light source for all elements; sequential multi-element analysis as standard; unique simultaneous background correction; high sample throughput; rapid readiness for measurement; easy to operate and robust; new information content; and improved analytical performance.

The previous dependence of the measurement on hollow cathode lamps is eliminated and the associated costly preparation time no longer applies. The protracted burn-in time of the light source is now also no longer required, since any drift phenomena are corrected simultaneously. The use of a xenon lamp as a continuous source of radiation opens up the entire wavelength range relevant for AAS for the customer in just one step. The evaluation of molecular absorption bands, allowing the analysis of additional elements, such as sulfur or phosphorus, is a further innovation.

Operating convenience is a top priority for the contrAA®. Thanks to the tandem principle, it is readily possible to change quickly from flame technology to graphite furnace technology.

The unique resolution with a spectral bandwidth of below 2 pm/ pixel is decisive for the new quality of the measurement results and interference is minimised through optimum line separation.

With the contrAA® 700, the direct analysis of solids by AAS has now become a real alternative for many applications. The user is no longer limited to trace analysis, because insensitive lines can also be used without problems. Moreover, the method overcomes the limits of Zeeman AAS with respect to background correction.