contrAA Series — High-Resolution Continuum Source AAS

PFAS are per- and polyfluoroalkylated substances with persistent properties, which have therefore been and still are used in everyday objects (e.g., water-repellent coatings for textiles and paper, cookware). Due to their multiple uses, PFAS are currently found in numerous environmental samples. Besides monitoring of surface water or contaminated soils, control at wastewater treatment plants is of increasing interest. Since PFAS are very resistant to conventional biological treatment in wastewater plants, they can not be removed from wastewater without a special treatment step and are therefore often found in the effluent of wastewater treatment plants or in sewage sludge. In this application note, Analytik Jena shows that the quantification of PFAS in different solid samples as a sum parameter can be carried out very quickly and easily with the described EOF method using the contrAA 800.

This application note from Analytik Jena is focused on the analysis of nickel-based alloys.

This application note discusses improving the performance of total fluorine (TF) analysis in wastewater by optimizing high-resolution–continuum source graphite furnace molecular absorption spectrometry (HR-CS GF MAS) methods and applying novel calibration strategies.

Fluorine is a common element in the earth’s crust, formed in minerals and rocks as fluorides. In this study, fluorine content in rock samples was determined by graphite furnace AAS using the contrAA® 800 G High-Resolution Continuum Source Atomic Absorption Spectrometer with solid sampler for direct analysis of finely ground samples.

Food safety strategy covers the safety of food for human consumption, but also animal and plant health. Analytik Jena shows how food is traceable as it moves from the farm to the fork.

This application note has been updated from the previous version published on April 4, 2017.

This application note describes a straightforward and fast analysis of wine using the contrAA® 800. Atomic absorption spectrometry is the most commonly used technique for metal determination in wines. Wine consists of a complex matrix including water, sugar, alcohol as well as a great variety of organic and inorganic components. Some of these components include metals, such as copper and zinc that are essential biometals, however, the majority of them have carcinogenic or toxic effects even at trace levels. For these reasons, it is of great importance to constantly monitor the levels of certain elements.

This technical note details some of the key benefits featured in the contrAA® Dynamic Mode. For ultra-trace analysis the contrAA® yields detection limits up to an order of magnitude better than traditional AAS technology. The contrAA® 800 series Dynamic Mode automates many key operations, enabling the connection of multiple calibration curves to provide a wide-range calibration over up to five orders of magnitude. This allows measurements of ultra-trace- and major elements in the same sample with a single method, thus offering a dynamic range similar to that of ICP-OES instruments.

The consumption of dietary supplements is widely spread and on the rise. These dietary supplements are generally used without prescriptions, proper counseling or any awareness of their potential health risks. To ensure the safety of these products and increase the awareness of the citizen to benefit from these dietary supplements it is of great importance to perform diligent analysis for (toxic) metals present in dietary supplements. Atomic absorption spectrometry (AAS) is a robust, reliable, and sensitive analytical technique which is well suited for the determination of heavy metals. This analytical technique is therefore widely employed for this purpose.

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Analytik Jena’s contrAA allows analysis of every wavelength of every element thanks to its Xenon lamp