TLC Scanner 4

The TLC Scanner 4 is the most advanced workstation for densitometric evaluation of TLC/HPTLC chromatograms and other planar objects.


The TLC Scanner 4 is a scanning densitometer. It measures the reflection of separated compounds in absorption and/or fluorescence mode. Controlled by visionCATS software the TLC Scanner 4 enables quantitative evaluation of the generated densitometric data. The spectral range of light from 190 to 900 nm is available for selecting single or multiple wavelengths for scanning densitometry. Detection can thus be fine-tuned to match the spectral properties of the analyte to its optimized specificity and sensitivity of the detection.


Key Features

  • Measurement of reflection, either in absorbance and/or fluorescence
  • Spectral range from 190 to 900 nm
  • Data step resolution 25–200 μm
  • Spectrum recording up to 100 nm/s
  • Any plate format up to 20 x 20 cm
  • Software-controlled by visionCATS.
Evaluation with visionCATS

Evaluation with visionCATS

visionCATS controls the TLC Scanner 4 and enables quantitative evaluation of the generated densitometric data. To determine the substance concentration in a sample, five different quantification functions (e.g. linear and polynomial) are available. Several scanning steps (e.g. scanning the plate after development and scanning the same plate after derivatization) and up to five different evaluations can be performed (with data obtained from single wavelength, multiple wavelengths or a combination of measurements in absorption and fluorescence detection mode).