contrAA : Novel atomic absorption spectrometers enable analysis of non-metals for the first time.
Now the High-Resolution Continuum Source AAS technology (HR-CS AAS) also enables the detection of non-metals using an AAS instrument, the contrAA®
from Analytik Jena. Thanks to a Xenon lamp as continuous radiation source, any wavelength is available for measurement on the contrAA®
– including molecular bands. By converting the non-metals into characteristic molecules, these can be detected using molecular absorption spectrometry (MAS).
Without extensive sample preparation the non-metals in the graphite furnace are converted quantitatively into the target molecule and then detected by way of spectrometry. It does not matter whether the non-metals are free anions or organically or inorganically bound in the sample. Thus a simple, fast and reliable spectrometric method for the detection of non-metals in almost any matrix and across a wide range of concentrations is available for the first time, e.g. of fluorine in water or toothpaste or of phosphorus in animal feed or seepage water.
Graphite furnace HR-CS MAS is as precise, robust, and interference-free as graphite furnace AAS and not subject to any limitations regarding the chemical bonding, the pH value, the solvent, or the sample matrix, reducing sample preparation to a minimum. Simultaneous measurement triples your sample throughput
Analytik Jena furthermore enhances the range of applications of the revolutionary contrAA®
product series by introducing the simultaneous analysis of several absorption lines in the measured spectral range. This offers great benefits especially in the relatively time-consuming graphite furnace technology, because several elements can be detected simultaneously using a single atomization.
One application example is the simultaneous detection of Ni, Fe and V in waste water. Low vanadium concentrations in the µg/l range are detected in parallel to Ni and Fe concentrations in the mg/l range in process water. The simultaneous measurement triples your sample throughput and the unique three-dimensional spectrum representation supports users in the rapid optimization of the atomizing parameters without additional empirical intermediate steps.
contrAA® series features:
- One single light source − designed for multi-element analysis
- Unique simultaneous background correction − best results
- Spectrum display − new information content
- Long-life, robust components − low running costs
- solid AA® − direct analysis of solid samples