Automatic sample application is a key factor for productivity of the HPTLC laboratory. The requirements for an instrument serving this purpose, i.e. precision, robustness during routine use and convenient handling are fully met by the Automatic TLC Sampler 4. The ATS 4 offers fully automatic sample application for qualitative and quantitative analyses as well as for preparative separations. it is suited for routine use and high sample throughput in mass analysis.
samples are either applied as spots through contact transfer (0.1–5 µl) or as bands or rectangles (0.5 to > 50 µl) using the spray-on technique. starting zones sprayed on as narrow bands offer the best separation attainable with a given chromatographic system. application in the form of rectangles allows precise application of large volumes without damaging the layer. prior to chromatography, these rectangles are focused into narrow bands with a solvent of high elution strength. the ats 4 allows «overspotting», i.e. a sequential application from different vials onto the same position. this technique can be used e.g. in prechromatographic derivatization, spiking, etc.
Key features
- Fully automatic sample application, suitable for routine.
- application of spots, bands, or rectangles.
- data input and monitoring through wincats.
- application of solutions onto any planar medium.
- application of sample volumes between 0.1 and 5 µl by contact transfer
- spray-on application of sample volumes between 0.5 and > 50 µl