solid AA® - Fast, precise, easy
If solid samples are analyzed directly, the amount of work and time required for the sample preparation is reduced to a minimum. Apart from saving time, there are several other main advantages:
If solid samples are analyzed directly, the amount of work and time required for the sample preparation is reduced to a minimum. Apart from saving time, there are several other main advantages:
With solid AA® your samples can be analyzed without additional reagents. Consequently, the risk of contamination of these samples caused by blank values is reduced significantly. Dilution errors or analyte loss during sample preparation and storage are impossible.
The dilution, which invariably accompanies a digestion, is not required in the solid AA® technique. As a result, the relative measurement sensitivity can easily be increased by at least a factor of 10 compared to the solution analysis. Higher concentrations up to the percent range can also be determined precisely.
In the clinical and biological field of application, the available sample quantities are often very small. solid AA® is a micromethod. Therefore, a sample weight of approximately 50 μg is sufficient for element determination. Consequently, precise measurements can be carried out for such applications as well. This is also an advantage for the examination of element distribution in a sample, since the analytical samples can specifically be taken with a higher spacial resolution and inhomogeneities can be detected.
Since the analysis via solid AA® usually occurs without reagent addition, not only costs are reduced. The use of digestion reagents that may pose a health risk or a risk to the environment, as is often necessary for the dissolution of refractory samples, is not required. Chemical waste is thus kept to a minimum.
Paste-like, sticky materials that are difficult to dose are simply placed on the sample carrier and weighed in directly. Weighing errors due to particles left on the weighing boat can thus be avoided. Thanks to the high degree of automation of the solid AA® errors due to sample handling become practically impossible.
With solid AA® many samples can be analyzed directly without any additional preparation. As a result, analysis results are available after only a few minutes. The monitoring of incoming goods and the production process is carried out promptly; any waiting time that occurs in conventional wetchemical sample preparation can be avoided.
