Photometric system

The sample preparation - the digestion

Sample preparation is an impor-tant component of the complete analyses. Only a perfectly harmonised system enables complex samples, e.g. soils, substrates, etc. to be analysed.

The system LASA AGRO 2800 has perfectly been tailored to meet these demands.

The standardised sample preparation guarantees precise and reproducible analyses results. The prepared extraction concentrate 20037 can be used as

digestion solutions for all macroelements. Other extraction methods can certainly also be carried out and the user has the option to adapt the system he is aquainted with.

The extraction case 20030 contains the complete equipment for soil digestions, e.g. solar balance, funnels, folded filter papers, and 1 ltr. extraction concentrate 20037.

The measuring unit - the photometer LASA AGRO 2800

This is the heart of this complete system: the compact laboratory and field photometer LASA AGRO 2800. For the whole range of LANGE cuvette tests or for measurements with specific user methods. With LASA AGRO 2800, every work step is simple and convenient. Developed in line with the latest concepts, it is especially suitable for routine applications in soil, substrate, water and environmental analyses.

Thanks to the integrated barcode reader (IBR), the whole range of round cuvette tests for approximately 70 parameters can be evaluated directly without any need for prior selection. Moreover, all shapes of cuvettes as well as concentrations with factor and linear and nonlinear calibration curves are possible - LASA AGRO 2800 is equipped for even for every non-standard application. The reference beam measuring technology ensures highest precision of the measuring results. The multilingual and self-explanatory menu navigation provides maximum convenience for all routine applications. The LASA AGRO 2800 can be operated with 110-/220-V (selectable) power supply or optional with rechargeable batteries. The LASA AGRO 2800 is your trusted partner for varied and routine applications.

The results - the evaluation

All cuvettes are labelled with a barcode which provides all necessary information for the photometer. When inserting the cuvette in the photometer, the integrated barcode reader recognises the cuvette and the required wavelength and factors are adjusted automatically. The rotation of the cuvette during the measuring process makes operating errors and incorrect measurements virtually impossible. The evaluation of the measuring results can be carried out in

• mg / 100 g soil for soil analyses
  
  
• mg / liter substrate for substrate, peat analyses
  
  
• mg / liter solution for nutritive solutions, drainage water, etc.

The interpretation of the analysis results are carried out according to users requirements. Tables for different plants are provided particularly for the corresponding application.