Dr. Lehmann GmbH & Co. KG

UV/VIS spektroscopy

A modern high-resolution dual-beam photometer allows photometric analysis in the UV as well as in the visible wavelength range. For this purpose, a number of investigation procedures have been developed. In particular:

  • Trace analysis of metals such as iron, copper, lead, cadmium
    Anion analysis (phosphate, silicate)
  • Determination of formaldehyde as total formaldehyde. This process is mainly used in the paint industry and has been described in guideline VdL03. For this purpose, the sample material is first subjected to an acidic steam distillation and the distillate is then quantified using the "acetylacetone method" on formaldehyde. An in-house improved version of this method allows more precise statements about release rates and quantities. By means of an adapted equipment, even large quantities of samples can be examined inexpensively.

Further applications can also be prepared for photometric investigations.